(E)-2(R)-[1(S)-[(tetrahydro-2(RS)-pyranyloxy)carbamoyl]-4-(4-nitrophenyl)-3-butenyl]-2'-(methanesulphonyl)-4-methyl-2'-phenylvalerohydrazide 、
对甲苯磺酸 在
乙醚 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 5.0h,
以to give 0.063 g of (E)-2(R)-[1(S)-(hydroxycarbamoyl)-4-(4-nitrophenyl)-3-butenyl]-2′-(methanesulphonyl)-4-methyl-2′-phenylvalerohydrazide in the form of a light-brown solid的产率得到(E)-2(R)-[1(S)-(hydroxycarbamoyl)-4-(4-nitrophenyl)-3-butenyl]-2'-(methanesulphonyl)-4-methyl-2'-phenylvalerohydrazide