3,9-dimethyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole 、
5-乙烯基甲酸吡啶 在
四丁基氯化铵 5-(2-(2,3,4,5-tetrahydro-3,9-dimethylazepino[4,5-b]indol-6(1H)-yl)ethyl)pyridine-2-carboxylic acid 、
乙酸乙酯 、
Sodium sulfate-III 、 crude product 、
三氟乙酸 作用下,
以
sodium hydroxide 、
水 为溶剂,
反应 16.0h,
以to afford 7 mg of 5-(2-(3,9-dimethyl-2,3,4,5-tetrahydroazepino[4,5-b]indol-6(1H)-yl)ethyl)picolinic acid as the TFA salt的产率得到5-(2-(2,3,4,5-tetrahydro-3,9-dimethylazepino[4,5-b]indol-6(1H)-yl)ethyl)pyridine-2-carboxylic acid