PROCESS FOR THE STEREOSELECTIVE SYNTHESIS OF 3-SUBSTITUTED 2-SULPHONYL METHYL PROPIONIC ACIDS AND INTERMEDIATE PRODUCTS.

摘要

PCT No. PCT/EP93/02674 Sec. 371 Date Mar. 30, 1995 Sec. 102(e) Date Mar. 30, 1995 PCT Filed Sep. 30, 1993 PCT Pub. No. WO94/07850 PCT Pub. Date Apr. 14, 1994Compounds of the formula I IMAGE I can be prepared in a multi-day process starting from the compounds of the formulae II and III R1-SH, II IMAGE III where the substituents R1, R2 and R3 have the meanings given.