Patent number: 8183234
Abstract: Guanidine derivatives having a condensed tricyclic ring of formula 1: are disclosed, wherein U is C(O), CRaRb, O, NRa or S(O)m; V is CRaRb or NRa; W is S(O)m; wherein Ra is H, alkyl, cycloalkyl, alkenyl or aralkyl; Rb is H, alkyl, OH, ORa or OCORa, and m is the integer 0, 1 or 2; R1, R2, R3, R4, R5, R6, R7 and R8 are as defined herein with the proviso that at least one of R1, R2, R3, R4, R5, R6, R7 or R8 is guanidino or guanidinocarbonyl. These derivatives are sodium-proton exchange inhibitors and are useful as medicaments for the treatment of, for example, organ disorders associated with ischemia and reperfusion, cardiac arrhythmia, cardiac hypertrophy, hypertension, cell proliferative disorders and diabetes.
Type:
Grant
Filed:
June 30, 2010
Date of Patent:
May 22, 2012
Assignee:
Piramal Life Sciences Limited
Inventors:
Bansi Lal, Swati Bal-Tembe, Usha Ghosh, Arun Kumar Jain, Tulsidas More, Anil Ghate, Jacqueline Trivedi, Sapna Parikh
Patent number: 7964631
Abstract: Compounds of formula 1: are disclosed, wherein V is CH2; W is S(O)m; m is the integer 0, 1 or 2; U is O, C(O), CR13R14 or NR15; where R13 is H, alkyl; R14 is H, OH, OR13 or OCOR13; R15 is H, alkyl, cycloalkyl, alkenyl, C(O)R13, C(O)OR13 or alkylaminocarbonyl; R1, R2, R3, R4, R5, R6, R7 and R8 are as defined herein. These compounds are inhibitors of tumor necrosis factor-alpha (TNF-?) and are useful as medicaments for the treatment and prevention of disorders caused by increased TNF-? activity, in particular inflammations.
Type:
Grant
Filed:
August 11, 2010
Date of Patent:
June 21, 2011
Assignee:
Piramal Life Sciences Limited
Inventors:
Bansi Lal, Somesh Sharma, Usha Ghosh, Swati Bal-Tembe, Tulsidas More, Pravin Gagare, Sunil Jadhav, Shashikant Patil, Asha Kulkarni-Almeida, Sapna Parikh, Radha Bhaskar Panicker, Anagha Damre, Ravindra Gupte