二碳酸二叔丁酯 、
benzyl (1R,2S,3S,4R,5S)-2-((2R,3R,4R,5R)-3,5-dihydroxy-5-methyl-4-(N-methyl-tert-butoxycarbonylamino)tetrahydro-2H-pyran-2-yloxy)-3-hydroxy-5-ieri-butoxycarbonylamino-4-((2R,3R,6S)-3-tert-butoxycarbonylamino-6-((2-(tetrahydro-2H-pyran-2-yloxy)ethylamino)methyl)tetrahydro-2H-pyran-2-yloxy)cyclohexylcarbamate 在
三乙胺 作用下,
以
甲醇 为溶剂,
反应 18.0h,
以87%的产率得到benzyl (1R,2S,3S,4R,5S)-2-((2R,3R,4R,5R)-3,5-dihydroxy-5-methyl-4-(N-methyl-tert-butoxycarbonylamino)tetrahydro-2H-pyran-2-yloxy)-3-hydroxy-5-tert-butoxycarbonylamino-4-((2R,3R,6S)-3-tert-butoxycarbonylamino-6-((N-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)tert-butoxycarbonylamino)methyl)tetrahydro-2H-pyran-2-yloxy)cyclohexylcarbamate