ethyl 4-(5-isopropoxy-4-methoxy-2-nitrophenyl)-4-hydroxy-2-butynoate 、
1-(叠氮甲基)-4-甲氧基苯 在
silica gel 、
正己烷 、
乙酸乙酯 、 ethyl 5-(1-hydroxy-(5-isopropoxy-4-methoxy-2-nitrophenyl)methyl)-1-(4-methoxybenzyl)-1H-1,2 作用下,
以
甲苯 为溶剂,
反应 16.0h,
以to give a 1:1 mixture (7.01 g, 75%) of ethyl 4-(1-hydroxy-(5-isopropoxy-4-methoxy-2-nitrophenyl)methyl)-1-(4-methoxybenzyl)-1H-1,2,3-triazole-5-carboxylate (a-1: low polar product (LP)) and ethyl 5-(1-hydroxy-(5-isopropoxy-4-methoxy-2-nitrophenyl)methyl)-1-(4-methoxybenzyl)-1H-1,2的产率得到ethyl 4-(1-hydroxy-(5-isopropoxy-4-methoxy-2-nitrophenyl)methyl)-1-(4-methoxybenzyl)-1H-1,2,3-triazole-5-carboxylate