1-羟基苯并三唑 、
3-氯-4-异丙氧基苯甲酸 、
ethyl 4-{4-[(Z)-(hydroxyimino)(amino)methyl]-1-[(4-methylphenyl)sulfonyl]-1H-indol-7-yl}butanoate 、
四丁基氟化铵 在
EtOAc Petroleum 、
ethyl 4-[4-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1H-indol-7-yl]butanoate 作用下,
以
四氢呋喃 、
1,2-二氯乙烷 为溶剂,
反应 18.0h,
以to obtain the desired product 70 mg ethyl 4-[4-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1H-indol-7-yl]butanoate (D37)的产率得到ethyl 4-[4-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1H-indol-7-yl]butanoate