Process for the continuous biotechnological preparation of optical isomer S(+) of 2-(6-methoxy-2-naphthyl) propionic acid
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United States of America Patent
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Jul 20, 1993
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N/A
app pub date -
Feb 21, 1989
filing date -
Feb 25, 1988
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Expired
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Abstract
Continuous biotechnological preparation of optical isomer S(+) of 2-(6-methoxy-2-naphthyl) propionic acid consisting in the reaction of a racemic (R,S) ester of 2-(6-methoxy-2-naphthyl) propionic acid having melting point below 50.degree. C. of formula: ##STR1## wherein R.sub.1 =a C.sub.2 -C.sub.10 alkyl, C.sub.4 -C.sub.6 cycloalkyl, phenyl, tetrahydropyranyl , tetrahydrofuranyl radicals and --(CH.sub.2 CH.sub.2 O).sub.n --R.sub.2 group, wherein n=2-15 and R.sub.2 =a C.sub.1 -C.sub.4 alkyl group, with the Lipase obtained from Candida Cylindracea, at temperatures ranging from 20.degree.-60.degree. C. and at a pH ranging from 5 to 8, by feeding said ester in a continuous way into a bioreactor containing said Lipase immobilized on a porous carrier selected from adsorbent resins of the polyacrylester type having a porosity ranging from 50 to 1000 .ANG. and a granulometry ranging from 1 to 0.01 mm.
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