Intermediate for use in the preparation of taurocholanic acids

Details Intermediate for use in the preparation of taurocholanic acids Intermediate for use in the preparation of taurocholanic acids

1994-05-19

1996-04-16

Kestler, Kimberly J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

552554, 552555, C07J 900

Patent

active

055084532

ABSTRACT:
The present invention relates to intermediates for use in the preparation of taurocholanic acids. The intermediates have the following formula (IV): ##STR1## in which A completes the 5.beta.-cyclopentaneperhydrophenanthrene structure of a cholanic acid; E is hydrogen or a methyl; and R is a hydrocarbon residue bonded to the carbonyl group by a tertiary carbon.

REFERENCES:
patent: 4088760 (1978-05-01), Benson et al.
patent: 5352682 (1994-10-01), Sipos
Morrison & Boyd, Organic Chemistry, 4th ed. (1983) pp. 923-926 & 823-825.
J. Falbe, "Methoden der Organischem Chemie . . . ," 1985, Georg Thieme Verlag, Stuttgart, Germany, pp. 635-636 and 978-981, (no translation).

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