(+/-)-2-甲基烟碱

2-methyl-5-[(2S)-1-methylpyrrolidin-2-yl]pyridine

(S)-2-methyl-3-(1-methylpyrrolidin-2-yl)pyridine

4-methyl-3-[(2S)-1-methylpyrrolidin-2-yl]pyridine

4,6-Dimethylnicotine