摘要:
                                Stannyl radical-mediated cyclization of oxime ethers (6), (14), (22), and (29) derived from glucose and galactose afforded the cyclized aminosugar derivatives (7), (8), (15, 16 and 17), (23), (24), and (30, 31 and 32) which would serve as key intermediates for the synthesis of dysiherbaine and its isomers.