Process for the preparation of pregnane derivatives

Details Process for the preparation of pregnane derivatives Process for the preparation of pregnane derivatives

1989-03-20

1990-09-11

Sneed, H. M.

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

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

552595, 552597, 552598, C07J 100

Patent

active

049564820

ABSTRACT:
Known pregnane derivatives are prepared by esterification of know androstane derivatives to give new esters of Formula III ##STR1## wherein in each case symbolizes a single bond or a double bond,

REFERENCES:
patent: 4102908 (1987-07-01), Hofmeister et al.
patent: 4567002 (1986-01-01), Hofmeister et al.
Hofmeister et al., (1978) "Conversion of 17-.alpha.-Ethynyl Steroids", Chem. Ber. (111):3086-3093.

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