Owner Actelion Pharmaceuticals Ltd.

Inventors Koberstein, Ralf; Aissaoui, Hamed; Weller, Thomas; Fischli, Walter; Sifferlen,Thierry; Clozel, Martine

Agent A J Park

Pub. Number AU-B-2002240855

PCT Pub. Number WO2002/051838

Priority PCT/EP00/13289 27.12.00 EP

Filing date 19 December 2001

Wipo publication date 8 July 2002

Acceptance publication date 17 August 2006

C07D 405/12 (2006.01) Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom

A61K 31/55 (2006.01) - having seven-membered rings, e.g. azelastine, pentylenetetrazole

C07D 223/16 (2006.01) Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom

C07D 243/14 (2006.01) Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms

C07D 267/14 (2006.01) Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one oxygen atom as the only ring hetero atoms

C07D 285/36 (2006.01) Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups

C07D 401/12 (2006.01) Heterocyclic compounds containing two or more hetero rings

C07D 413/12 (2006.01) Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms

C07D 417/12 (2006.01) Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group