作者:Pietro Spanu、Gloria Rassu、Luigi Pinna、Lucia Battistini、Giovanni Casiraghi
DOI:10.1016/s0957-4166(97)00431-x
日期:1997.10
A twelve-step, diastereoselective synthesis of [(2S,3R,4E)-2-amino-1,3-dihydroxy-4-octadecene, 1] is described (12 steps, 10% overall yield), starting from 3. The first step was the crossed addition of N-(tert-butoxycarbonyl)-2-(tert-butyldimethylsilyloxy)pyrrole (TB-SOP, 2) to 3 (a vinylogous variant of the Mukaiyama-aldol reaction) producing a seven-carbon lactam intermediate 4, which was then shortened
描述了[(2 S,3 R,4 E)-2-氨基-1,3-二羟基-4-十八碳烯,1 ]的十二步非对映选择性合成(12步,总收率10%),从3。第一步是将N-(叔丁氧羰基)-2-(叔丁基二甲基甲硅烷氧基)吡咯(TB-SOP,2)交叉添加到3(Mukaiyama-aldol反应的乙烯基变体)中,生成七碳内酰胺中间体4,然后将其缩短三个碳原子以提供醛-赤藓糖衍生物10。维蒂希伸长率10用适当的C 14内酯,然后进行光诱导的Z到E双键异构化并除去保护基,完成了合成。