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:
Jun. 27, 2000
Filed:
Apr. 29, 1998
Applicant:
Inventors:
Maria de los Angeles Rey, Santiago de Compostela, ES;
Antonio Mourino, Santiago de Compostela, ES;
Ana Fernandez-Gacio, Santiago de Compostela, ES;
Yagamare Fall, Santiago de Compostela, ES;
Sebastianus J Halkes, Weesp, NL;
Koen M Halkes, Weesp, NL;
Jan-Paul van de Velde, Weesp, NL;
Jan Zorgdrager, Weesp, NL;
Assignee:
Duphar International Research B.V., Weesp, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
552563 ;
Abstract
The invention relates to a new method of preparing 16-dehydro vitamin D compounds having formula I ##STR1## wherein: R has the epi-configuration or the normal configuration and represents straight or branched C.sub.1-6 -alkyl, C.sub.2-6 -alkenyl, C.sub.3-6 -cycloalkyl, or an aromatic group optionally substituted with halogen, C.sub.1-3 -alkyl or alkoxy,