Process for the preparation of methyl (+)-(2S,3S)-3-[(2-aminophe

Details Process for the preparation of methyl (+)-(2S,3S)-3-[(2-aminophe Process for the preparation of methyl (+)-(2S,3S)-3-[(2-aminophe

1989-04-18

1991-04-16

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

562431, C07C 6730, C07C32309

Patent

active

050084348

ABSTRACT:
A process for the preparation of a methyl (+)-(2S,3S)-3-[(2-aminophenyl)thio]-2-hydroxy-3-(4-methoxyphenyl)propionat e of the formula (I): ##STR1## in which X denotes hydrogen or chlorine, which process comprises reacting a 2-aminothiophenol of formula (II): ##STR2## in which X is as defined above, with methyl (-)-(2R,3S)-2,3-epoxy-3-(4-methoxyphenyl)propionate, in a 1,2-dichloroethane solvent.

REFERENCES:
patent: 4416819 (1983-11-01), Nagao et al.
Patent Abstracts of Japan, vol. 10, No. 339 (C-385) (2395), Nov. 15, 1986 & JP-A-61 145 160 (Nippon Chemiphar) 02-02-1986.
Patent Abstracts of Japan, vol. 10, No. 339 (C-385) (2395), Nov. 15, 1986 & JP-A-61 145 159 (Nippon Chemiphar) 02-02-1986.

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