Ichikawa Y, Nishiyama T, Isobe M. Stereospecific synthesis of the alpha- and beta-D-glucopyranosyl ureas.
J Org Chem 2001;
66:4200-5. [PMID:
11397154 DOI:
10.1021/jo0100751]
[Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new, one-pot, two-stage procedure for the preparation of the alpha- and beta-D-glucopyranosyl ureas has been developed. Oxidation of glucopyranosyl isocyanides provides glucopyranosyl isocyanates, which can be trapped in situ with amines to afford good yields of glucopyranosyl ureas. Application of this method establishes the successful synthesis of the hitherto unknown N,N'-di-alpha,alpha- and alpha,beta-D-glucopyranosyl ureas.
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