Resolution of trans-2-(alkoxycarbonylethyl)-lactams useful in th

Details Resolution of trans-2-(alkoxycarbonylethyl)-lactams useful in th Resolution of trans-2-(alkoxycarbonylethyl)-lactams useful in th

1998-10-02

1999-07-06

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,...

435170, 435171, 435197, 435280, 435822, 435872, 435874, 435886, 435911, 435913, 435917, 435921, 435931, 435933, C12P 1710, C12P 4100

Patent

active

059196726

ABSTRACT:
A process for the microbiological or enzymatic hydrolytic resolution of racemic trans-2-(alkoxycarbonylethyl) lactams of the formula I: ##STR1## wherein R is C.sub.1 -C.sub.7 alkyl, 2,2,2-trifluoroethyl or methoxyethoxyethyl and R.sup.1 is hydrogen or a protecting group is disclosed, whereby an optically enriched compound of the formula Ib or IIa: ##STR2## is obtained.

REFERENCES:
patent: 5317100 (1994-05-01), Kalvoda et al.
patent: 5618707 (1997-04-01), Homann et al.
patent: 5767115 (1998-06-01), Rosenblum et al.

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