申请人:ENIRICERCHE S.p.A.
公开号:EP0224088A2
公开(公告)日:1987-06-03
A process for the solid-phase synthesis of a peptide containing at least one retro-inverso amide bond characterized in that :
a) the C-terminal partial peptide sequence up to the bond which has to be retro-inverted is synthesized by stepwise condensation of the amino acids suitably protected at the amino group as well as at the side chain functional groups, on a solid support which is insoluble in the reaction medium,
b) the dipeptide derivative of general formula (I) :
wherein
Fmoc is N-9-fluorenylmethoxycarbonyl, and
R and R₁, each independently, represent the side-chain residues of natural amino acids wherein the functional groups, if any, are suitably protected,
is coupled to the amino terminus of the partial peptide sequence covalently bound to the solid insoluble support,
c) the Fmoc amino-protecting group is cleaved from the peptide bound to the solid insoluble support,
d) the whole sequence of the desired retro-inverso peptide is then stepwise built up by conventional procedures
e) the thus obtained retro-inverso peptide is detached from the solid insoluble support and purified.
一种固相合成含有至少一个反向酰胺键的多肽的工艺,其特征在于:
a) 在不溶于反应介质的固体载体上,通过逐步缩合在氨基和侧链官能团上受到适当保护的氨基酸,合成直至需要逆转键的 C 端部分肽序列、
b) 通式(I)的二肽衍生物:
其中
Fmoc 是 N-9-芴甲氧羰基,以及
R和R₁各自独立地代表天然氨基酸的侧链残基,其中的官能团(如有)受到适当保护、
与共价结合到固体不溶性支持物上的部分肽序列的氨基末端偶联、
c) 将 Fmoc 氨基保护基团从与固体不溶性载体结合的肽上裂解、
d) 然后通过常规程序逐步建立所需的逆向转化肽的整个序列
e) 从固体不溶性载体上分离并纯化由此获得的逆向反向肽。