2-{(4-chlorophenyl)[(2S,4R)-2-methyl-1,2,3,4-tetrahydroquinolin-4-yl]amino}-2-oxoethyl acetate 、
N,N-二异丙基乙胺 、
methyl 5-[4-(chlorocarbonyl)phenyl]-2,2-dimethylpentanoate 在
水 、
乙酸乙酯 、 Brine 、
magnesium sulfate 、 crude residue 、 silica gel 、
ethyl acetate n-hexane 作用下,
以
二氯甲烷 为溶剂,
以to afford the pure methyl 5-(4-{[(2S,4R)-4-[[(acetyloxy)acetyl](4-chlorophenyl)amino]-2-methyl-3,4-dihydroquinolin-1(2H)-yl]carbonyl}phenyl)-2,2-dimethylpentanoate (110 mg, 40%)的产率得到methyl 5-(4-{[(2S,4R)-4-[[(acetyloxy)acetyl](4-chlorophenyl)amino]-2-methyl-3,4-dihydroquinolin-1(2H)-yl]carbonyl}phenyl)-2,2-dimethylpentanoate