Spillane, William J.; Coyle, Catherine M.; Feeney, Brendan G.; Thompson, Emer F. published the artcile< Development of Structure-Taste Relationships for Thiazolyl-, Benzothiazolyl-, and Thiadiazolylsulfamates>, Electric Literature of 70057-67-9, the main research area is heterocyclic sulfamate taste MSBAR.
A total of 28 new five-membered aromatic ring thiazolyl-, benzothiazolyl-, and thiadiazolylsulfamates, as their sodium salts, have been synthesized and combined with 30 known similar heterocyclic sulfamates to create a database for the study of structure-activity (taste) relationships (SARs) in this heterocyclic subgroup, which is known to contain a somewhat disproportionate number of sweet compounds compared to other groups of tastants. A series of nine parameters (descriptors) to describe the properties of the sulfamate anions were calculated in Spartan Pro and HyperChem programs. These are the HOMO, LUMO, length of the mol., dipole moment, area, volume, Esolv, σ (from the literature), and log P. The taste data for all 58 compounds were categorized into three classes, namely, sweet (S), nonsweet (N), and nonsweet/sweet (N/S). Discriminant anal. only classified 44 of the 58 compounds correctly. Classification and regression tree anal. (CART) using the S_ Plus program proved highly effective, in that the derived tree correctly classified 46 compounds from a training set of 48 and, from a computer randomly selected test set of 10 compounds, 7 had their taste correctly predicted. A second tree was grown using the addnl. taste category N/S, and this tree also performed extremely well, with 8 of the 10 compounds in the test set correctly classified. These trees should be very reliable for predicting the tastes of other heterocyclic sulfamates, which belong to the subset used here.
Journal of Agricultural and Food Chemistry published new progress about Discriminant analysis. 70057-67-9 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClN3S, Electric Literature of 70057-67-9.
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