PROCESS FOR PREPARING THIAZOLIDINE CARBOXYLIC ACIDS AND RELATED ACIDES AND SALTS THEREOF

摘要

Title compds. (I; R = hydroxy or lower alkoxy; R1,R2 = H or lower alkyl; R5,R6 = H or lower alkyl; R3 = H, lower alkyl or mercapto-lower alkylene; R4 = H, lower alkanol, benzoyl or III; X = O, S, SO, or SO2; m = 1-3; n = 0-2; m+n = 2 or 3; P = O or 1) useful as inhibitors, were manufd. by acylation of II with R4S(CH2)pCHR3COOH.