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
SYNTHESIS OF PENTA-<i>N</i>,<i>O</i>-ACETYL-DL-VALIENAMINE AND ITS RELATED BRANCHED-CHAIN UNSATURATED AMINOCYCLITOLS AND CYCLITOLS
作者:Seiichiro Ogawa、Tatsushi Toyokuni、Tetsuo Suami
DOI:10.1246/cl.1980.713
日期:1980.6.5
Penta-N,O-acetyl-Dl-valienamine, and its related branched-chain unsaturated aminocyclitols and cyclitols were synthesized from the dibromides derived from tri-O-acetyl-Dl-(1,3/2)-4-methylene-5-cyclohexene-1,2,3-triol.