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Regioselective esterification of polyhydroxylated steroids by Candida antarctica lipase B

✍ Scribed by Anna Bertinotti; Giacomo Carrea; Gianluca Ottolina; Sergio Riva

Book ID: 104204722
Publisher: Elsevier Science
Year: 1994
Tongue: French
Weight: 487 KB
Volume: 50
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)89326-1

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✦ Synopsis

AMrucL-The regiosekctivity of Cundida w~furcficu lipase B towards lhe acetylatia, d polyhydroxylated steroids has ken sy~makally investigated. The enzyme &wed a marked merence for the alcoholic moieties on the A ring and on the steroidal side chain. sneking it possible the selective acylation at the positions 3 or 21 of polyhydtuxy steroids. Acylation with rhc synthetkaUy usefuk este.rs chloroszeuue and fevulinate was also accomplished, whereas estmifhion with butmate and pivaloate was unsuccessful.

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