(E)-2(R)-[1(S)-[(tetrahydro-2(RS)-pyranyloxy)carbamoyl)-4-phenyl-3-butenyl]-2'-isobutyl-4-methyl-2'-[(2-tert.butyloxycarbonyl-1-pyrazolidinyl)carbonyl]valerohydrazide 、
盐酸 在
乙醚 作用下,
以
1,4-二氧六环 、
乙醚 为溶剂,
反应 2.0h,
以to give 0.142 g of (E)-2(R)-[1(S)-(hydroxycarbamoyl)-4-phenyl-3-butenyl]-2′-isobutyl-4-methyl-2′-[(1-pyrazolidinyl)carbonyl]valerohydrazide hydrochloride in the form of a pale yellow solid的产率得到(E)-2(R)-[1(S)-(hydroxycarbamoyl)-4-phenyl-3-butenyl]-2'-isobutyl-4-methyl-2'-[(1-pyrazolidinyl)carbonyl]valerohydrazide hydrochloride