Enzymatic process for deacetylation of a phenoxy-alkynyl...

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound

Reexamination Certificate

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C435S198000, C435S196000

Reexamination Certificate

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07402414

ABSTRACT:
A process for preparing the compound of formula II by reacting the compound of formula I with an enzyme that can hydrolyze the ester bond:where * indicates a chiral center, R1and R2each independently represent H, C1-C6alkyl, —CN or —CCH, and R3and R4each independently represent H or C1-C6alkyl.

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