.DELTA..sup.4 -19-sulfur substituted-androstene derivatives havi

Details .DELTA..sup.4 -19-sulfur substituted-androstene derivatives havi .DELTA..sup.4 -19-sulfur substituted-androstene derivatives havi

1989-03-22

1991-07-09

Rivers, Diana

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

552520, 552632, A61K 3156, C07J 3100

Patent

active

050306278

ABSTRACT:
The invention relates to .DELTA..sup.4 -androstene derivatives with aromatase-inhibiting activity having the formula: ##STR1## wherein R.sub.1 =O, (.alpha.R.sub.5,.beta.H) or N--O--R.sub.6 ;

REFERENCES:
patent: 4473564 (1984-09-01), de Winter et al.
patent: 4634694 (1987-01-01), Loozen et al.

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