Publication number: 20080119646
Abstract: A process for the preparation of substituted benzothiazinoindoles of general formula (I) wherein R1, R2, and R4 are independently selected from hydrogen, chloro, fluoro, amino, nitro, cyano, CHO, (C1-C3)alkyl, perhalo(C1-C3)alkyl, (C1-C3)alkoxy, aryl, aralkyl, aralkoxy, (C5-C7)heterocyclyl, (C5-C7)heterocyclylalkyl, (C5-C7)heterocyclyloxy, acyl, acetyl, alkylamino, aminoalkyl, amide, hydroxyalkyl, carboxylic acid and its derivatives. The process comprises cyclization of compound of general formula-II (i.e. substituted 1-benzenesulfonyl-7-bromo-1H-indole), formula (II) wherein R1, R2, R3 and R4 are attached using suitable catalyst and solvents.
Type:
Application
Filed:
June 23, 2005
Publication date:
May 22, 2008
Inventors:
Venkata Satya Niroai Ramakrishna, Vikas Shreekrishna Shirsath, Rama Sastri Kambhampati, Amol Dinkar Deshpande, Prabhakar Kothmirkar, Venkateswarlu Jasti
Patent number: RE39679
Abstract: The present invention is directed to certain novel compounds represented by structural Formula (I) or pharmaceutically acceptable salt forms thereof, wherein R1, R5, R6a, R6b, R7, R8, R9, X, b, k, m, and n, and the dashed lines are described herein. The invention is also concerned with pharmaceutical formulations comprising these novel compounds as active ingredients and the use of the novel compounds and their formulations in the treatment of certain disorders. The compounds of this invention are serotonin agonists and antagonists and are useful in the control or prevention of central nervous system disorders including obesity, anxiety, depression, psychosis, schizophrenia, sleep disorders, sexual disorders, migraine, conditions associated with cephalic pain, social phobias, and gastrointestinal disorders such as dysfunction of the gastrointestinal tract motility.
Type:
Grant
Filed:
February 16, 2006
Date of Patent:
June 5, 2007
Assignee:
Bristol-Myers Squibb Pharma Company
Inventors:
Albert J. Robichaud, Taekyu Lee, Wei Deng, Ian S. Mitchell, Michael Guang Yang, Simon Haydar, Wenting Chen, Christopher D. McClung, Emile J. B. Calvello, David M. Zawrotny, Parthasarathl Rajagopalan