Dl-Validoxylamine B 是通过将 Dl-4,7:5,6-Dl-O-异丙烯基-(1,4,6/5)-4,5,6-三羟基-3-羟甲基-2-环己烯基胺与 Dl-3,4-二-O-乙酰基-1,2-脱水-5,7-O-苄亚基-(1,2,4,6/3,5)-6-羟甲基-1,2,3,4,5-环己烷五醇反应合成的,随后去除保护基团。
Synthetic Studies on the Validamycins. IV. Synthesis of DL-Valienamine and Related Branched-chain Unsaturated Aminocyclitols
作者:Tatsushi Toyokuni、Seiichiro Ogawa、Tetsuo Suami
DOI:10.1246/bcsj.56.1161
日期:1983.4
first synthesis has been achieved of the racemates of valienamine and its related, branched-chain unsaturated aminocyclitols. Two synthetic routes for valienamine were developed, one of which is stereoselective and highly efficient. The key transformation is a stereospecific SN2′ attack (apofacial) by an azide ion on the allyl chloride, prepared by regioselective epoxidation of the conjugated diene