A sequential high-yielding large-scale solution-method for synthesis of philanthotoxin analogues
作者:P Wellendorph
DOI:10.1016/s0223-5234(02)00003-x
日期:2003.1
analogues, a pharmacologically important class of polyamine conjugates, is described. The solution-phase procedure is illustrated by gram-scale synthesis of philanthotoxins PhTX-343 and PhTX-12. Selectively protected polyamines are coupled to N(alpha)-Fmoc-protected amino acid pentafluorophenyl esters. After removal of the N(alpha)-Fmoc group, the amine is coupled with carboxylic acid pentafluorophenyl
描述了用于快速合成费洛托辛类似物(药理上重要的一类多胺缀合物)的通用改进方法。溶液阶段的过程通过嗜氧性毒素PhTX-343和PhTX-12的克规模合成得到说明。选择性保护的多胺与Nα-Fmoc保护的氨基酸五氟苯基酯偶联。除去Nα-Fmoc基团后,将胺与羧酸五氟苯基酯偶联。脱保护,然后通过在十八烷基甲硅烷基二氧化硅上的真空液相色谱法(RP-18相)快速有效地纯化,以总产率的74-78%得到了费洛托辛类似物。