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:
Sep. 01, 2009
Filed:
Aug. 31, 2004
Christoph M. Dehnhardt, New York, NY (US);
Sreenivasulu Megati, New York, NY (US);
Ronald S. Michalak, Congers, NY (US);
Panolil Raveendranath, Monroe, NY (US);
Jianxin Ren, Nanuet, NY (US);
Charles C. Wu, Denville, NJ (US);
Yangzhong Wu, Bronx, NY (US);
Christoph M. Dehnhardt, New York, NY (US);
Sreenivasulu Megati, New York, NY (US);
Ronald S. Michalak, Congers, NY (US);
Panolil Raveendranath, Monroe, NY (US);
Jianxin Ren, Nanuet, NY (US);
Charles C. Wu, Denville, NJ (US);
Yangzhong Wu, Bronx, NY (US);
Wyeth, Madison, NJ (US);
Abstract
A process for making the compound of formula (I) wherein Ac represents acetate; X represents O or CH; Y represents C-Calkyl; and Z is selected from the group consisting of H, halogen, CN, CHO, CF, OCF, OH, C-Calkyl, C-Calkoxy, C-Cthioalkyl, NH, N(C-Calkyl), NH(C-Calkyl), NC(O)—(CCalkyl), and NO. In his process, a compound of formula (II) is reacted with hydrazine to form a primary alkylamine, and then the primary alkylamine is reacted with acetic anhydride, to produce the compound of formula (I).