Total synthesis of (s)-(-) and (r)-(+)-frontalin and of (-)-malyngolide from the branched-chain sugar “α”-d-isosaccharino-lactone as chiral template
作者:Minh-Chau Trinh、Jean-Claude Florent、Claude Monneret
DOI:10.1016/s0040-4020(01)90101-2
日期:1988.1
Highly enantiomerically pure. (S)-(-) 2 and (R )-(+)-frontalin 3 and (-) -malyngolide. 4 were synthesized from the common chiral building block, ( 2R) -1, 2-O-isopropylidene-2-hydroxymethyl-pent-4-ene.-1, 2-diol 9 readily prepared in five. steps and 35% overall yield from α-D-isosaccharino-1 ,4-lactone 1.
高度对映体纯。(S)-(-)2和(R)-(+)-额叶蛋白3和(-)-麦芽糖内酯。由常见的手性结构单元(2R)-1,2-O-异亚丙基-2-羟甲基-戊-4-烯.-1,2-二醇9合成5种化合物。步骤从α-D-isosaccharino-1,4-内酯1得到35%的总产率。