Gonzalez-Bulnes P, Casas J, Delgado A, Llebaria A. Practical synthesis of (−)-1-amino-1-deoxy-myo-inositol from achiral precursors.
Carbohydr Res 2007;
342:1947-52. [PMID:
17524374 DOI:
10.1016/j.carres.2007.04.024]
[Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2007] [Revised: 04/13/2007] [Accepted: 04/22/2007] [Indexed: 11/30/2022]
Abstract
A new synthesis of enantiomerically pure 1-amino-1-deoxy-myo-inositol is reported. The route described employs p-benzoquinone, an achiral compound, as the starting material to give conduritol B tetraacetate in three steps. Kinetic resolution of this compound using a palladium catalyst with a chiral ligand allows access to a conduritol B tetraester in high enantiomeric excess. This compound is transformed into tetrabenzyl conduritol B epoxide, which is regioselectively opened with azide to give the key azidocyclitol. Final transformation into (-)-1-amino-1-deoxy-myo-inositol hydrochloride is achieved in four synthetic steps. This sequence allows the synthesis of this compound in high enantiomeric purity in a semi-preparative scale.
Collapse