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:
Oct. 19, 2010
Filed:
Sep. 26, 2005
Applicants:
Hisaki Kajino, Kanagawa, JP;
Hiroshi Miyamoto, Kanagawa, JP;
Rei Okazaki, Kanagawa, JP;
Yutaka Ikeuchi, Kanagawa, JP;
Inventors:
Hisaki Kajino, Kanagawa, JP;
Hiroshi Miyamoto, Kanagawa, JP;
Rei Okazaki, Kanagawa, JP;
Yutaka Ikeuchi, Kanagawa, JP;
Assignee:
Sankyo Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 271/28 (2006.01); C07C 217/90 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for preparing a compound having the following formula (I) by reducing a nitro group of the following formula (III) followed by carrying out an intramolecular dehydration condensation, wherein Ris hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen.