Fmoc-L-丙氨酸 、
lamellarin D 在
N-甲基吗啉 、
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
二氯甲烷 为溶剂,
以84%的产率得到[4-[7,17-bis[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoyl]oxy]-8,16-dimethoxy-3-oxo-4-oxa-1-azapentacyclo[11.8.0.02,11.05,10.014,19]henicosa-2(11),5,7,9,12,14,16,18,20-nonaen-12-yl]-2-methoxyphenyl] (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoate