Synthesis of valiolamine and its N-substituted derivatives AO-128, validoxylamine G, and validamycin G via branched-chain inosose derivatives

Autor: Hiroshi Fukase, Satoshi Horii
Rok vydání: 1992
Předmět:
Zdroj: The Journal of Organic Chemistry. 57:3651-3658
ISSN: 1520-6904
0022-3263
Popis: Novel synthetic routes to valiolamine (1a) and N-substituted valiolamine derivatives via branched-chain inosose derivatives are described. (1S)-(1(OH),2,4/1,3)-2,3,4-tri-O-benzyl-1-C- [(benzyloxy)methyl]-5-oxo-1,2,3,4-cyclohexanetetrol (3), a branched-chain inosose derivative prepared from D-glucose,has been converted into 1a via a ketoxime followed by hydrogenation. N-Substituted valiolamine derivatives having strong α-D-glucosidase inhibitory activity have been synthesized by the direct reductive amination of the branched-chain inosose derivative 3 with an appropriate amino compound to construct the N-substituent moiety,followed by removal of the O-benzyl protecting group
Databáze: OpenAIRE