lithium;2-[[(1S,2S,3S,7R,8R,11R)-8-[[2-[[(1S,2S,3S,7R,8R,11R)-8-amino-5,5-dimethyl-9-oxo-2-phenylmethoxy-4,6-dioxa-13-thia-10-azatricyclo[8.3.0.03,7]tridecane-11-carbonyl]amino]acetyl]amino]-5,5-dimethyl-9-oxo-2-phenylmethoxy-4,6-dioxa-13-thia-10-azatricyclo[8.3.0.03,7]tridecane-11-carbonyl]amino]acetate 在
二苯基膦叠氮化物 、
碳酸氢钠 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 120.0h,
以42%的产率得到(1R,7R,8R,12S,13S,14S,17R,23R,24R,28S,29S,30S)-10,10,26,26-tetramethyl-13,29-bis(phenylmethoxy)-9,11,25,27-tetraoxa-15,31-dithia-3,6,19,22,33,35-hexazaheptacyclo[21.9.2.27,14.08,12.024,28.030,33.017,35]hexatriacontane-2,5,18,21,34,36-hexone