Solid-phase synthesis of N,N′-unsymmetrically substituted ureas: application to the synthesis of carbaza peptides
作者:David Limal、Vincent Semetey、Pascal Dalbon、Michel Jolivet、Jean-Paul Briand
DOI:10.1016/s0040-4039(99)00288-9
日期:1999.4
The synthesis of Boc- or Fmoc-monoprotected propylenediamine derivatives is reported starting from N-protected α-amino acids. The introduction of these building blocks on solid support via the formation of a urea moiety leads to a new pseudopeptide family (CαCH2CH2Nα(R)CONHCα). Two carbonylating reagents, i.e N,N′-carbonyldiimidazole and triphosgene, as well as different coupling procedures,
Boc-或Fmoc-单保护的丙二胺衍生物的合成据报道是从N-保护的α-氨基酸开始的。通过形成脲部分引线到一个新的假肽家族引入固体载体上的这些结构单元的(C α CH 2 CH 2 N α(R)CONHC α)。已经测试了两种羰基化试剂,即N,N'-羰基二咪唑和三光气,以及不同的偶联程序,以优化结合了这种等位取代作用的模型肽的Boc和Fmoc固相合成。