A facile synthesis of (2E)-, (2E, 4E)-unsaturated amides was achieved via arsonium bromides with high stereoselectivity. Its application to the synthesis of related natural products 4 and 5 is also reported.
Total synthesis of lipoxins A4 and B4 from d-isoascorbic acid
作者:C. Gravier-Pelletier、J. Dumas、Y. Le Merrer、J.C. Depezay
DOI:10.1016/s0040-4039(00)92034-3
日期:1991.2
A total convergent synthesis of lipoxins A4 and B4 has been carried out via four optically pure α-hydroxy and α,β-dihydroxyaldehydes, obtained from D-isoascorbic acid as a single starting material. Connection by a six carbons unit uses Wittig-type reactions notably involving a stabilized arsonium ylide.
A facile stereoselective synthesis of leukotriene A4(LTA4) methyl ester
作者:Yanfang Wang、Jincui Li、Yulin Wu、Yaozeng Huang、Lilan Shi、Jianhua Yang
DOI:10.1016/s0040-4039(00)85009-1
日期:——
A facile synthesis of LTA4methylester was achieved according to Scheme 1, in which the key intermediates and were prepared with the new procedures conveniently, stereoselectively and in good yields.