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.
Patent No.:
Date of Patent:
Jul. 07, 1987
Filed:
Nov. 06, 1985
Applicant:
Inventor:
Joachim Engels, Kronberg/Taunus, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
26039745 ; 2603974 ;
Abstract
Steroid-21-phosphoric acids and pharmaceutically usable salts thereof of the formula III ##STR1## (in which U=H or CH.sub.3, V=H, OH, O or Hal; W=H or OH and Y=H or F) are obtained in a very pure state by reacting I ##STR2## (in which X=OH or Hal) with an organic phosphoric acid ester of the formula IVa or IVb ##STR3## (in which Z=optionally substituted alkyl and R=alkyl). The compounds II ##STR4## obtained thereby is saponified to give III and the latter, if appropriate, is neutralized to give the salt. Compounds II are new.