Synthesis of (.+-.)-(4a.ALPHA.,6a,7.ALPHA.,7a.ALPHA.)-Hexahydro-6-hydroxy-7- methylcyclopenta(c)pyran-3(1H)-one, a Structure Common to Abelialactone, Aglykon A1, and Isoboonein.
作者:Masashi OHBA、Tsuyoshi HANEISHI、Tozo FUJII
DOI:10.1248/cpb.44.525
日期:——
Synthesis of (±)-(4aα, 6α, 7α, 7aα)-hexahydro-6-hydroxy-7-methylcyclopenta[c]pyran-3(1H)-one [(±)-1] has been achieved through an 8-step route starting from 6, 7-dihydrocyclopenta-1, 3-dioxin-5(4H)-one (4). The identities of synthetic (±)-1 with abelialactone, Aglykon A1, and isoboonein permitted the unequivocal assignment of this common structure and the relative stereochemistry to these cyclopentano-monoterpene lactones.
(±)-(4aα, 6α, 7α, 7aα)-六氢-6-羟基-7-甲基环戊并[c]吡喃-3(1H)-酮[(±)-1]的合成以 6, 7-二氢环戊-1, 3-二恶英-5(4H)-酮 (4) 为起点,通过 8 步路线实现。合成的(±)-1 与阿贝拉内酯、Aglykon A1 和异贝拉内酯的相同性使我们能够明确地将这一共同结构和相对立体化学归属于这些环戊烷单萜内酯。