dimethyl 1-[[(1S,2R,6R,8R,9R,10S)-4,4-dimethyl-9-[(2-methylpropan-2-yl)oxycarbonylamino]-3,5,7,12-tetraoxatricyclo[6.4.0.02,6]dodecan-10-yl]methyl]triazole-4,5-dicarboxylate 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以62%的产率得到methyl (1R,2R,4R,8R,9S,12S)-6,6-dimethyl-19-oxo-3,5,7,10-tetraoxa-14,15,16,20-tetrazapentacyclo[10.8.0.02,9.04,8.014,18]icosa-15,17-diene-17-carboxylate