作者:Hovsep Avedissian、Santosh C. Sinha、Ahmad Yazbak、Anjana Sinha、Partha Neogi、Subhash C. Sinha、Ehud Keinan
DOI:10.1021/jo000500a
日期:2000.9.1
The efficient totalsynthesis of asimicin, 1, and bullatacin, 2, has demonstrated the advantages of three different strategies for the synthesis of the tricyclic intermediates 6 and 7, which represent the key fragment of the bis-THF Annonaceous acetogenins. The naked carbon skeleton strategy is based on the production of all asymmetric centers by selective placement of the oxygen functions onto an
Total synthesis of the potent antitumor, bis-tetrahydrofuranyl annonaceous acetogenins (+)-asimicin and (+)-bullatacin
作者:Thomas R. Hoye、Lushi Tan
DOI:10.1016/0040-4039(95)00207-s
日期:1995.3
bis-THF-subunit preparation via Sharpless' double asymmetric dihydroxylation and subsequent asymmetric epoxidation; preparation of the C(4)-hydroxybutenolide-containing subunit using a Stille butenolide synthesis; Pdo-mediated coupling of these vinyl iodide and alkyne subunits; and selective Wilkinson reduction of the resulting enyne.