Category: 79349-53-4

Singh, Janak’s team published research in Organic Process Research & Development in 2000 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Computed Properties of C21H20Cl2N2O3S Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Singh, Janak; Kim, Oak K.; Kissick, Thomas P.; Natalie, Kenneth J.; Zhang, Bo; Crispino, Gerard A.; Springer, Dane M.; Wichtowski, John A.; Zhang, Yunhui; Goodrich, Jason; Ueda, Yasutsugu; Luh, Bing Y.; Burke, Brian D.; Brown, Matthew; Dutka, Anthony P.; Zheng, Bin; Hsieh, Dau-Ming; Humora, Michael J.; North, Jeffrey T.; Pullockaran, Anne J.; Livshits, Juliya; Swaminathan, Shankar; Gao, Zhinong; Schierling, Peter; Ermann, Peter; Perrone, Robert K.; Lai, Mei C.; Gougoutas, Jack Z.; DiMarco, John D.; Bronson, Joanne J.; Heikes, James E.; Grosso, John A.; Kronenthal, David R.; Denzel, Theodor W.; Mueller, Richard H. published their research in Organic Process Research & Development on December 31 ,2000. The article was titled 《A Practical Synthesis of an Anti-Methicillin Resistant Staphylococcus aureus Cephalosporin BMS 247243》.Computed Properties of C21H20Cl2N2O3S The article contains the following contents:

A practical synthesis of the anti-methicillin resistant Staphylococcus aureus cephem (6R-trans)-E-7-[[[[2,5-dichloro-4-[3-[(carboxymethyl)amino]-3-oxo-1-propenyl]phenyl]thio]acetyl]amino]-4-[[(2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl)methyl]thio]-2,6-dimethyl-1-[3-(4-methylmorpholino-4-yl)propyl]-1-pyridinium, hydroxide, inner salt (BMS-247243) was developed. A process was developed for the interchange of the iodide counterion in 4-(3-aminopropyl)-4-methylmorpholinium HCl to chloride that was essential for an efficient synthesis of the C-3 4-mercaptopyridone sidechain. Use of catalytic Bu4NCl in the reaction of a chlorocinnamide with the lithium salt of methylthioglycolate formed the Me ester of the C-7 side chain of I in high yield. Reaction with the dianion of thioglycolic acid gave an increased level of the corresponding Michael addition byproduct that led to lower quality thermodn. product I by the reverse reaction. Cephem nucleus ACLH HCl was acylated with the acid chloride of acid I in a biphasic system to circumvent the cumbersome workup involved in reactions mediated by carbodiimdes DCC or EDAC for the synthesis of the cephem diester. An unusual degradation product diacid was obtained during the deprotection of the cephem diester with TFA to amorphous diacid II. Reaction of II with the 4-mercaptopyridone methylmorpholinium reactant formed BMS 247243 in moderate yield. Alternately, an efficient coupling of the cephem diester with the 4-mercaptopyridone methylmorpholinium reactant gave crystalline diester III with minimal (<1%) contamination of the double bond isomer. Double deprotection of diester III followed by crystallization furnished the double zwitterion BMS 247243 in high yield. The results came from multiple reactions, including the reaction of (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Computed Properties of C21H20Cl2N2O3S)

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Computed Properties of C21H20Cl2N2O3S Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Yang, Zhimou’s team published research in Journal of the American Chemical Society in 2007 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Yang, Zhimou; Ho, Pak-Leung; Liang, Gaolin; Chow, Kin Hung; Wang, Qigang; Cao, Yang; Guo, Zhihong; Xu, Bing published an article on January 17 ,2007. The article was titled 《Using β-Lactamase to Trigger Supramolecular Hydrogelation》, and you may find the article in Journal of the American Chemical Society.Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride The information in the text is summarized as follows:

This paper reports the rational design and synthesis of a β-lactam conjugate. Treating the conjugate with β-lactamase cleaves the scissile β-lactam amide bond, releases a hydrogelator, and results in enzymic formation of a supramol. hydrogel. The process involves the use of a bacterial enzyme-the one causes antibiotic inactivation and accounts for resistance to β-lactams in many clin. important pathogens-to catalyze the formation of the hydrogel. It offers an opportunity to investigate the kinetics of these types of enzymic reactions, screen inhibitors of the enzyme, and provides a new candidate to generate hydrogels for biomedical applications. In the experimental materials used by the author, we found (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride)

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Gao, Wenzhong’s team published research in Journal of the American Chemical Society in 2003 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Recommanded Product: 79349-53-4On September 17, 2003 ,《Novel Fluorogenic Substrates for Imaging β-Lactamase Gene Expression》 was published in Journal of the American Chemical Society. The article was written by Gao, Wenzhong; Xing, Bengang; Tsien, Roger Y.; Rao, Jianghong. The article contains the following contents:

A new class of small nonfluorescent fluorogenic substrates, based on release of a phenolic dye from a vinylogous cephalosporin, becomes brightly fluorescent after β-lactamase hydrolysis with up to 153-fold enhancement in the fluorescence intensity. Less than 500 fM of β-lactamase in cell lysates can be readily detected, and β-lactamase expression in living cells can be imaged with a red fluorescence derivative These new fluorogenic substrates should find uses in clin. diagnostics and facilitate the applications of β-lactamase as a biosensor. In the experiment, the researchers used (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Recommanded Product: 79349-53-4)

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Aoki, Toshiaki’s team published research in European Journal of Medicinal Chemistry in 2018 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Aoki, Toshiaki; Yoshizawa, Hidenori; Yamawaki, Kenji; Yokoo, Katsuki; Sato, Jun; Hisakawa, Shinya; Hasegawa, Yasushi; Kusano, Hiroki; Sano, Masayuki; Sugimoto, Hideki; Nishitani, Yasuhiro; Sato, Takafumi; Tsuji, Masakatsu; Nakamura, Rio; Nishikawa, Toru; Yamano, Yoshinori published an article in European Journal of Medicinal Chemistry. The title of the article was 《Cefiderocol (S-649266), A new siderophore cephalosporin exhibiting potent activities against Pseudomonas aeruginosa and other gram-negative pathogens including multi-drug resistant bacteria: Structure activity relationship》.Recommanded Product: 79349-53-4 The author mentioned the following in the article:

The structure-activity relationship (SAR) for a novel series of catechol conjugated siderophore cephalosporins is described with their in vitro activities against multi-drug resistant Gram-neg. pathogens including Pseudomonas aeruginosa, Acinetobacter baumannii, Stenotrophomonas maltophilia and Enterobacteriaceae. Cefiderocol (3) was one of the best mols. which displayed well-balanced and potent activities against multi-drug resistant Gram-neg. pathogens including carbapenem resistant bacteria among the prepared compounds with the modified C-7 side chain and the modified C-3 side chain. Cefiderocol (3) is a highly promising parenteral cephalosporin for the treatment of multi-drug resistant Gram-neg. infection. In addition to this study using (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride, there are many other studies that have used (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Recommanded Product: 79349-53-4) was used in this study.

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Yang, Zhimou’s team published research in Journal of the American Chemical Society in 2007 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Yang, Zhimou; Ho, Pak-Leung; Liang, Gaolin; Chow, Kin Hung; Wang, Qigang; Cao, Yang; Guo, Zhihong; Xu, Bing published an article on January 17 ,2007. The article was titled 《Using β-Lactamase to Trigger Supramolecular Hydrogelation》, and you may find the article in Journal of the American Chemical Society.Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride The information in the text is summarized as follows:

This paper reports the rational design and synthesis of a β-lactam conjugate. Treating the conjugate with β-lactamase cleaves the scissile β-lactam amide bond, releases a hydrogelator, and results in enzymic formation of a supramol. hydrogel. The process involves the use of a bacterial enzyme-the one causes antibiotic inactivation and accounts for resistance to β-lactams in many clin. important pathogens-to catalyze the formation of the hydrogel. It offers an opportunity to investigate the kinetics of these types of enzymic reactions, screen inhibitors of the enzyme, and provides a new candidate to generate hydrogels for biomedical applications. In the experimental materials used by the author, we found (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride)

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Gao, Wenzhong’s team published research in Journal of the American Chemical Society in 2003 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Recommanded Product: 79349-53-4On September 17, 2003 ,《Novel Fluorogenic Substrates for Imaging β-Lactamase Gene Expression》 was published in Journal of the American Chemical Society. The article was written by Gao, Wenzhong; Xing, Bengang; Tsien, Roger Y.; Rao, Jianghong. The article contains the following contents:

A new class of small nonfluorescent fluorogenic substrates, based on release of a phenolic dye from a vinylogous cephalosporin, becomes brightly fluorescent after β-lactamase hydrolysis with up to 153-fold enhancement in the fluorescence intensity. Less than 500 fM of β-lactamase in cell lysates can be readily detected, and β-lactamase expression in living cells can be imaged with a red fluorescence derivative These new fluorogenic substrates should find uses in clin. diagnostics and facilitate the applications of β-lactamase as a biosensor. In the experiment, the researchers used (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Recommanded Product: 79349-53-4)

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Aoki, Toshiaki’s team published research in European Journal of Medicinal Chemistry in 2018 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Aoki, Toshiaki; Yoshizawa, Hidenori; Yamawaki, Kenji; Yokoo, Katsuki; Sato, Jun; Hisakawa, Shinya; Hasegawa, Yasushi; Kusano, Hiroki; Sano, Masayuki; Sugimoto, Hideki; Nishitani, Yasuhiro; Sato, Takafumi; Tsuji, Masakatsu; Nakamura, Rio; Nishikawa, Toru; Yamano, Yoshinori published an article in European Journal of Medicinal Chemistry. The title of the article was 《Cefiderocol (S-649266), A new siderophore cephalosporin exhibiting potent activities against Pseudomonas aeruginosa and other gram-negative pathogens including multi-drug resistant bacteria: Structure activity relationship》.Recommanded Product: 79349-53-4 The author mentioned the following in the article:

The structure-activity relationship (SAR) for a novel series of catechol conjugated siderophore cephalosporins is described with their in vitro activities against multi-drug resistant Gram-neg. pathogens including Pseudomonas aeruginosa, Acinetobacter baumannii, Stenotrophomonas maltophilia and Enterobacteriaceae. Cefiderocol (3) was one of the best mols. which displayed well-balanced and potent activities against multi-drug resistant Gram-neg. pathogens including carbapenem resistant bacteria among the prepared compounds with the modified C-7 side chain and the modified C-3 side chain. Cefiderocol (3) is a highly promising parenteral cephalosporin for the treatment of multi-drug resistant Gram-neg. infection. In addition to this study using (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride, there are many other studies that have used (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Recommanded Product: 79349-53-4) was used in this study.

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Recommanded Product: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Shao, Qing’s team published research in Chemical Communications (Cambridge, United Kingdom) in 2012 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.SDS of cas: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

《Enzyme responsive luminescent ruthenium(II) cephalosporin probe for intracellular imaging and photoinactivation of antibiotics resistant bacteria》 was published in Chemical Communications (Cambridge, United Kingdom) in 2012. These research results belong to Shao, Qing; Xing, Bengang. SDS of cas: 79349-53-4 The article mentions the following:

The Forster resonance energy transfer (FRET) based luminescent ruthenium(II) cephalosporin probe has been designed and synthesized, which can be selectively activated by endogenous β-lactamases and thus provided a localized and specific intracellular luminescence imaging and photoinactivation of drug resistant bacterial pathogens. In the experiment, the researchers used (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4SDS of cas: 79349-53-4)

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.SDS of cas: 79349-53-4 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Jiang, Tingting’s team published research in Chemical Communications (Cambridge, United Kingdom) in 2009 | CAS: 79349-53-4

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Category: chlorides-buliding-blocks Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

《Colorimetric screening of bacterial enzyme activity and inhibition based on the aggregation of gold nanoparticles》 was written by Jiang, Tingting; Liu, Rongrong; Huang, Xianfeng; Feng, Huajun; Teo, Weiling; Xing, Bengang. Category: chlorides-buliding-blocks And the article was included in Chemical Communications (Cambridge, United Kingdom) on April 21 ,2009. The article conveys some information:

A simple and novel gold nanoparticle (Au-NPs) based colorimetric method has been developed for efficient screening of class A β-lactamase (Bla) activity and inhibitors in vitro and in bacterial strains. In the experiment, the researchers used many compounds, for example, (6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas: 79349-53-4Category: chlorides-buliding-blocks)

(6R,7R)-Benzhydryl 7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride(cas:79349-53-4) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Category: chlorides-buliding-blocks Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics