331947-57-0Relevant articles and documents
An efficient synthesis of optical isomers of vasopressin V2 receptor antagonist OPC-41061 by lipase-catalyzed enantioselective transesterification
Matsubara, Jun,Morita, Seiji,Yamashita, Hiroshi,Otsubo, Kenji,Kitano, Kazuyoshi,Ohtani, Tadaaki,Kawano, Yoshikazu,Bando, Masahiko,Kido, Masaru,Ochida, Minoru,Tabusa, Fujio
, p. 131 - 138 (2007/10/03)
The optically active enantiomers of 7-chloro-5-hydroxy-1-[2- methyl-4-(2-methylbenzoylamino)benzoyl]-2,3,4,5-tetrahydro- 1H- 1-benzazepine (OPC-41061, 1) were enantioselectively synthesized. The chiral acetate ((R)-(-)-3) and the chiral alcohol ((S)-(+)-2) were prepared via the resolution of the racemic alcohol ((±)-2) using the lipase-mediated transesterification with vinyl acetate. Compounds ((R)-(-)-3) and ((S)-(+)-2) were converted to optically active 1.