(E)-2'-[3-(dimethylamino)propylsulphonyl]-2(R)-[1(S)-[(tetrahydro-2(RS)-pyranyloxy)carbamoyl]-4-phenyl-3-butenyl]-2'-isobutyl-4-methylvalerohydrazide 、
对甲苯磺酸一水合物 在
乙醚 作用下,
以
甲醇 为溶剂,
反应 3.5h,
以Trituration of the residue with diethyl ether gave 0.19 g of (E)-2′-[3-(dimethylamino)propylsulphonyl]-2(R)-[1(S)-(hydroxycarbamoyl)-4-phenyl-3-butenyl]-2′-isobutyl-4-methylvalerohydrazide p-toluenesulphonate in the form of an off-white solid的产率得到(E)-2(R)-[1(S)-(Hydroxycarbamoyl)-4-phenyl-3-butenyl]-2'-isobutyl-4-methyl-2'-[3-(dimethylamino)propylsulphonyl]valerohydrazide p-toluenesulphonate