Nα-<(9-fluorenylmethyl)oxy>carbonyl-Nε-(tert-butyloxycarbonyl)-D-lysyl-N-methylleucyl-N-methylleucyl-N-methylvaline 、
(2S,3R,4R,6E)-3-hydroxy-4-methyl-2-(methylamino)-6-octenoyl-L-2-aminobutyrylsarcosyl-N-methylleucylvalyl-N-methylleucylalanine benzyl ester 在
N-甲基吗啉 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
反应 72.0h,
以64%的产率得到N
α-<(9-fluorenylmethyl)oxy>carbonyl-N
ε-(tert-butyloxycarbonyl)-D-lysyl-N-methylleucyl-N-methylleucyl-N-methylvalyl-(2S,3R,4R,6E)-3-hydroxy-4-methyl-2-(methylamino)-6-octenoyl-L-2-aminobutyrylsarcosyl-N-methylleucylvalyl-N-methylleucylalanyl ben...