4-[[(2S,3R,4R,6R)-3-methoxy-2-methyl-16-oxo-29-oxa-1,7,17-triazaoctacyclo[12.12.2.12,6.07,28.08,13.015,19.020,27.021,26]nonacosa-8,10,12,14,19,21,23,25,27-nonaen-4-yl]-methylamino]-4-oxobutanoic acid 、
3-(tert-butoxy)-2-(2-chloroacetamido)-N-(prop-2-yn-1-yl)propanamide 在
4-二甲氨基吡啶 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
二甲基亚砜 为溶剂,
以7.4%的产率得到2-(2-chloroacetamido)-3-oxo-3-(prop-2-yn-1-ylamino)propyl 4-(((5S,6R,7R,9R)-6-methoxy-5-methyl-14-oxo-5,6,7,8,9,14,15,16-octahydro-17-oxa-4b,9a,15-triaza-5,9-methanodibenzo[b,h]cyclonona[jkl]cyclopenta[e]-asindacen-7-yl)(methyl)amino)-4-oxobutanoate