Total synthesis of the threo, trans, threo-mono-tetrahydrofuran annonaceous acetogenin longifolicin
作者:James A. Marshall、Hongjian Jiang
DOI:10.1016/s0040-4039(98)00007-0
日期:1998.3
An enantioselective synthesis of the C35threo, trans, threo-mono-tetrahydrofuran annonaceousacetogenin longifolicin through use of chiral long-chain α-and γ-OMOM allylic stannanes and (E)-ethyl 3-formyl-2-propenoate as the starting materials is described. The synthesis is structurally definitive and potentially applicable to other members of this family of cytotoxic acetogenins.
Longifolicin, longicoricin, and gigantetroneninone, three novel bioactive mono-tetrahydrofuran annonaceous acetogenins from Asimina longifolia (annonaceae)
作者:Qing Ye、Dorothée Alfonso、Dean Evert、Jerry L. McLaughlin
DOI:10.1016/0968-0896(96)00039-9
日期:1996.4
Longifolicin (1), longicoricin (2) and (2,4-cis and trans)-gigantetroneninone (3), three novel bioactive mono-tetra-hydrofuran (THF) gamma-lactone acetogenins, were isolated from the leaves and twigs of Asimina longifolia (Annonaceae) by directing the fractionation with the brine shrimp lethality test (BST). The structures were elucidated based on spectroscopic and chemical methods. Compounds 1-3 showed