Process for preparing 2-halogeno-3-hydroxy-3-phenyl-propionic ac

Details Process for preparing 2-halogeno-3-hydroxy-3-phenyl-propionic ac Process for preparing 2-halogeno-3-hydroxy-3-phenyl-propionic ac

1991-03-22

1993-04-20

Lilling, Herbert J.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing heterocyclic carbon compound having only o, n, s,...

435120, 435123, 435135, C12P 1718, C12P 1714, C12P 1702, C07D28110

Patent

active

052042480

ABSTRACT:
Disclosed is a process for preparing 2-halogeno-3-hydroxy-3-phenylpropionic acid ester compounds represented by the formula (I): ##STR1## wherein Ring A is a phenyl group which may be substituted, R.sup.1 is an ester residue, and X is a halogen atom, which comprises permitting an enzyme having the ability of stereoselectively reducing oxo group to hydroxy group to act on 2-halogeno-3-oxo-3-phenylpropionic acid ester compounds represented by the formula (II): ##STR2## wherein Ring A, R.sup.1 and X have the same meanings as defined above.

REFERENCES:
patent: 4622301 (1986-11-01), Gunther et al.
patent: 4734367 (1988-03-01), Leuenberger et al.
Patent Abstracts of Japan, vol. 9, No. 188 (C-295)(1911), Aug. 3, 1985.
Patent Abstracts of Japan, vol. 13, No. 255, (C-606)(3603), Jun. 13, 1989.
Chemical Abstracts, vol. 112, No. 17, Apr. 23, 1990.

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