Process for preparing 3a.alpha.-H-4.alpha.-[3'-propanol]-7a.beta

Details Process for preparing 3a.alpha.-H-4.alpha.-[3'-propanol]-7a.beta Process for preparing 3a.alpha.-H-4.alpha.-[3'-propanol]-7a.beta

1978-02-21

1979-12-04

Tanenholtz, Alvin E.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing heterocyclic carbon compound having only o, n, s,...

435 52, 435830, 435832, 435840, 435843, 435872, 435822, 435880, 435886, C12D 1300

Patent

active

041771060

ABSTRACT:
Novel microbial transformation process to selectively convert steroids with or without 17-alkyl side chains of from 2 to 10 carbon atoms, inclusive, to 3a.alpha.-H-4.alpha.-[3'-propanol]-7a.beta.-methylhexahydro-1,5-indaned ione hemiketal having the following structure: ##STR1## This compound can be used as an intermediate to make useful 19-nor steroids.

REFERENCES:
patent: 2602769 (1952-07-01), Murray et al.
patent: 3516908 (1970-06-01), Hayakawa et al.
patent: 3616228 (1971-10-01), Schubert et al.
patent: 3684657 (1972-08-01), Kraychy et al.
patent: 3759791 (1973-09-01), Marsheck et al.
Mamoli et al., Ber. 70, 470 and 471, 2079-2082, (1937).
Schubert et al., Steroids 4: 581-586, (1964).
Wang et al., Biochemistry, vol. 2, No. 6, 1238-1243, (1963).

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