- An efficient synthesis of a metabolite of vasopressin V2 receptor antagonist, OPC-31260, by metalloporphyrin-catalyzed demethylation
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A secondary amine (3) as a metabolite of the vasopressin V2 receptor antagonist, OPC-31260 (1), was efficiently prepared through selective demethylation of the corresponding N,N-dimethylalkylamine N-oxide (2) with meso-(tetraphenylporphinato)iron(III) chl
- Kawano, Yoshikazu,Otsubo, Kenji,Matsubara, Jun,Kitano, Kazuyoshi,Ohtani, Tadaaki,Morita, Seiji,Uchida, Minoru
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- Orally active, nonpeptide vasopressin V2 receptor antagonists: A novel series of 1-[4-(benzoylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepines and related compounds
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This paper describes a novel series of nonpeptide vasopressin V2 receptor antagonists. It has been demonstrated that the 1-[4- (benzoylamino)benzoyl]-2,3,4,5-1H-benzazepines and 1-[4- (benzoylamino)benzoyl]-2,3,4,5-1H-1,5-benzodiazepines show a high affinity for V2 (and V(1a)) receptors. Among the 1-[4-(benzoylamino)benzoyl]-2,3,4,5- 1H-benzazepine series, compounds with an alkylamino group on the benzazepine ring have been shown to have oral activity. A lipophilic group at the ortho position on the terminal benzoyl ring is important for both high V2 receptor affinity and oral activity. On the basis of these favorable properties, clinical testing of 31b has begun for use as an oral and iv aquaretic agent.
- Ogawa, Hidenori,Yamashita, Hiroshi,Kondo, Kazumi,Yamamura, Yoshitaka,Miyamoto, Hisashi,Kan, Keizo,Kitano, Kazuyoshi,Tanaka, Michinori,Nakaya, Kenji,Nakamura, Shigeki,Mori, Toyoki,Tominaga, Michiaki,Yabuuchi, Youichi
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p. 3547 - 3555
(2007/10/03)
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