A new synthetic route to 2-amino-2-deoxy-d-mannose derivatives from 3,4:5,6-di-O-isopropylidene-aldehydo-d-glucose dibenzyl acetal
作者:Makoto Kiso、Hideharu Ishida、Akihito Kawaide、Akira Hasegawa
DOI:10.1016/0008-6215(84)85111-3
日期:1984.4
gave a mixture of 3,4:5,6-di- O -isopropylidene- aldehydo - d -glucose dibenzyl acetal (1) and 2,3:5,6-di- O -isopropylidene- aldehydo - d -glucose dibenzyl acetal in good yield. The conversion of 1 into 2-amino-2-deoxy- d -mannose derivatives was accomplished, stepwise, via the nucleophilic displacement reaction of the trifluoromethanesulfonic ester of 1 with sodium azide.
摘要在对甲苯磺酸的存在下,在1,4-二恶烷溶液中用2,2-二苄氧基丙烷处理时,d-葡萄糖生成3,4:5,6-di-O-异亚丙基-醛-d-的混合物。葡萄糖二苄基乙缩醛(1)和2,3:5,6-二-O-异亚丙基-醛-d-葡萄糖二苄基乙缩醛收率良好。通过1的三氟甲磺酸酯与叠氮化钠的亲核取代反应,逐步完成1到2-氨基-2-脱氧-d-甘露糖衍生物的转化。