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:
Mar. 02, 2010
Filed:
Feb. 21, 2007
Paul Michael Murray, Loughborough, GB;
Luis-manuel Vaz, Loughborough, GB;
Debra Ainge, Loughborough, GB;
Katsumasa Harada, Ube, JP;
Shigeyoshi Nishino, Ube, JP;
Kiyotaka Yoshii, Ube, JP;
Paul Michael Murray, Loughborough, GB;
Luis-Manuel Vaz, Loughborough, GB;
Debra Ainge, Loughborough, GB;
Katsumasa Harada, Ube, JP;
Shigeyoshi Nishino, Ube, JP;
Kiyotaka Yoshii, Ube, JP;
AstraZeneca UK Limited, London, GB;
UBE Industries, Ltd., Ube-Shi, Yamaguchi, JP;
Abstract
A dibenzothiazepine compound is suitably prepared by subjecting a 2-amino-2'-carboxy-diphenylsulfide compound to dehydration-condensation reaction in the presence of an acidic catalyst; the 2-amino-2′-carboxy-diphenylsulfide compound is suitably prepared by reducing a 2-nitro-2′-carboxy-diphenylsulfide compound in a lower aliphatic ester solvent; and the 2-nitro-2′-carboxy-diphenylsulfide compound is suitably prepared by reacting a nitrobenzene compound with a thiosalicylic acid compound in a mixture of a lower aliphatic alcohol and water.