The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 07, 1992

Filed:

Jul. 23, 1990
Applicant:
Inventors:

Makoto Yoshihama, Utsunomiya, JP;

Koji Tamura, Shimotsuga, JP;

Nobuo Miyata, Utsunomiya, JP;

Shoji Nakayama, Utsunomiya, JP;

Masamichi Nakakoshi, Utsunomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
552615 ;
Abstract

Novel androst-4-ene-3,17-dione derivatives are disclosed. The group of these compounds has biological activities, in particular, the inhibiting activity on human placenta-derived estrogen-synthesizing enzyme. Therefore these compounds are expected to be utilized in the field of medical care, particularly as anticancer drugs.


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