Total synthesis of (8R)-3-(2-deoxy-.beta.-D-erythro-pentofuranosyl)-3,6,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin-8-ol (pentostatin), the potent inhibitor of adenosine deaminase
Synthesis and manufacture of pentostatin and its precursors, analogs and derivatives
申请人:Phiasivongsa Pasit
公开号:US20050267056A1
公开(公告)日:2005-12-01
Methods and compositions are provided for efficiently preparing and manufacturing pentostatin. Also provided are novel precursors of pentostatin, pentostatin analogs and derivatives. In one aspect of the invention, a method is provided for total chemical synthesis of pentostatin via a route of heterocyclic ring expansion. For example, a heterocyclic pharmaceutical intermediate for drugs such as pentostatin, e.g., the diazepinone precursor, can be obtained efficiently through a ring expansion of an O—C—N functionality in a hypoxanthine or 2′-deoxyinosine derivative. The methods and compositions can also be used to synthesize and manufacture heterocyclic compounds other than pentostatin, especially pharmaceutically important heterocyclic compounds.
[EN] SYNTHESIS AND MANUFACTURE OF PENTOSTATIN AND ITS PRECURSORS, ANALOGS AND DERIVATIVES<br/>[FR] SYNTHESE ET PRODUCTION DE PENTOSTATINE, PRECURSEURS, ANALOGUES ET DERIVES DE CETTE DERNIERE
申请人:SUPERGEN INC
公开号:WO2005027838A3
公开(公告)日:2005-06-30
SYNTHESIS AND MANUFACTURE OF PENTOSTATIN AND ITS PRECURSORS, ANALOGS AND DERIVATIVES