Owner Purdue Pharma L.P. Shionogi & Co., Ltd

Inventors Goehring, Richard R.; Matsumura, Akira; Shao, Bin; Taoda, Yoshiyuki; Tsuno, Naoki; Whitehead, John William Frank; Yao, Jiangchao; Fuchino, Kouki

Agent FB Rice

Pub. Number AU-A-2012203042

Parent 2008291823

Filing date 23 May 2012

Wipo publication date 14 June 2012

C07D 401/04 (2006.01) Heterocyclic compounds containing two or more hetero rings

A61K 31/498 (2006.01) - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine

A61K 31/4985 (2006.01) - Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems

A61P 25/04 (2006.01) Drugs for disorders of the nervous system

C07D 401/14 (2006.01) Heterocyclic compounds containing two or more hetero rings

C07D 451/04 (2006.01) Heterocyclic compounds containing condensed hetero ring systems

C07D 451/14 (2006.01) Heterocyclic compounds containing condensed hetero ring systems

C07D 471/14 (2006.01) Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups