2-ethyl-8-methyl-5-[2-(6-methylpyridin-3-yl)ethyl]-3,4-dihydro-1H-pyrido[4,3-b]indole

6-甲基-3-吡啶乙醇

5-乙基-2-甲基-吡啶

1-(6-甲基吡啶-3-基)乙醇

2,5-吡啶二羧酸