3-(methylamino)benzenethiol 、 (4R,5R)-5-((2S,5S,11S,14S,17S,20S,23R,26S,29S,32S)-5-ethyl11,17,26,29-tetraisobutyl-14,32-diisopropyl-1,7,10,16,20,23,25,28,31-nonamethyl-3,6,9,12,15,18,21,24,27,30,33-undecaoxo-1,4,7,10,13,16,19,22,25,28,31-undecaazacyclotritriacontan-2-yl)-4-methyltetrahydrofuran-2-yl acetate 在
N,O-双三甲硅基乙酰胺 、
三氟甲磺酸三甲基硅酯 作用下,
以
乙腈 为溶剂,
反应 1.5h,
以13.1%的产率得到(3S,6S,9S,12R,15S,18S,21S,24S,30S,33S)-30-ethyl-6,9,18,24-tetraisobutyl-3,21-diisopropyl-1,4,7,10,12,15,19,25,28-nonamethyl-33-((2R,3R,5S)-3-methyl-5-((3-(methylamino)phenyl)thio)tetrahydrofuran-2-yl)-1,4,7,10,13,16,19,22,25,28,31-undecaazacyclotritriacontan-2,5,8,11,14,17,20,23,26,29,32-undecaone