Total synthesis of the cyclopeptide alkaloid sanjoinine G1 and its C-11 epimer
作者:Stephen P. East、Feng Shao、Lorenzo Williams、Madeleine M. Joullié
DOI:10.1016/s0040-4020(98)00808-4
日期:1998.10
The naturally occurring cyclopeptidealkaloid sanjoinine G1 and its C-11 epimer were synthesized in 18 steps from D-serine. The key steps in the synthesis were the formation of the alkylaryl ether linkage via an SNAr reaction with 4-fluorobenzonitrile and the macrocyclization to form the 14-membered ring using a modification of the Schmidt protocol involving an activated pentafluorophenyl ester.
天然存在的环肽生物碱Sanjoinine G1及其C-11差向异构体由D-丝氨酸分18步合成。合成中的关键步骤是通过与4-氟苄腈的S N Ar反应形成烷基芳基醚键,并使用涉及激活的五氟苯基酯的Schmidt协议进行大环化以形成14元环。
Synthetic studies of 14-membered cyclopeptide alkaloids
作者:Stephen P. East、Madeleine M. Joullié
DOI:10.1016/s0040-4039(98)01589-5
日期:1998.10
A strained 14-memberedcyclopeptide was prepared from the Garner aldehyde derived from D-serine. The key steps in the synthesis were the construction of the alkyl-aryl ether linkage via an SNAr reaction involving 4-fluorobenzonitrile and the macrolactamization using a modification of the Schmidt protocol involving an activated pentafluorophenyl ester.
由衍生自D-丝氨酸的加纳醛制备了应变的14元环肽。合成中的关键步骤是通过涉及4-氟苄腈的S N Ar反应构建烷基-芳基醚键,并使用涉及激活的五氟苯基酯的Schmidt方案的改进进行大内酰胺化。