作者:Kiyoharu Nishide、Atsunori Aramata、Teruki Kamanaka、Takehisa Inoue、Manabu Node(rk)
DOI:10.1016/s0040-4020(01)85556-3
日期:——
realized by the introduction of an alkyl substituent at α-position of tetronic acid using a readily available none C2 chiral auxiliary (SMP or RMP), and conducted the desired asymmetric γ-methylation. Its application to expeditious total syntheses of (+)-blastmycinone (1) and (−)-3-epi-blastmycinone (2), and to the first total synthesis of (+)-(3R,4R,5R)-4-acetoxy-5-methyl-3-tetradecyltetrahydro-2(5H)-furanone
通过使用容易获得的无C 2手性助剂(SMP或RMP),在四氢苯甲酸的α-位引入烷基取代基来实现构象异构体的冻结,并进行了所需的不对称γ-甲基化。它可用于(+)-blastmycinone(1)和(-)-3-epi-blastmycinone(2)的快速总合成,以及(+)-(3R,4R,5R)-4-的首次总合成描述了乙酰氧基-5-甲基-3-十四烷基四氢-2(5H)-呋喃酮(3)。