4,8-dihydroxy-N-[(1S)-2-[2-(2-hydroxybenzoyl)hydrazino]-1-[(4-hydroxyphenyl)methyl]-2-oxo-ethyl]quinoline-2-carboxamide 、
TRANS-咖啡酸 在
final product 、
ethyl acetate dichloromethane 、
methanol-dichloromethane 作用下,
以successively 5% and 10% MeOH/CH2Cl2 to yield 100 mg, 25% of the title compound的产率得到(E)-3-(3,4-dihydroxyphenyl)-N-[(1S)-2-[2-(2-hydroxybenzoyl)hydrazino]-1-[(4-hydroxyphenyl)methyl]-2-oxo-ethyl]prop-2-enamide