Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...
Patent
1998-07-17
2000-05-09
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,...
435197, 435280, C12P 1706, C12N 918
Patent
active
060602902
ABSTRACT:
Optically active chroman-3-acetic acids and optically active chroman-3-acetic acid esters can be obtained by treating a mixture of (3R)- and (3S)-chroman-3-acetic esters of formula (I) ##STR1## [wherein R.sub.1 is a straight or branched alkyl group having 1-5 carbon atoms and R.sub.2 is a hydrogen atom or substituted or unsubstituted amino group]
REFERENCES:
patent: 5658796 (1997-08-01), Rossi, Jr. et al.
Fukuhara Nobuhiro
Matsuba Yasuko
Oikawa Toshihiro
Lilling Herbert J.
Mitsui Chemicals Incorporated
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