Dioxynicotine

Nicotine dioxide

[S,(-)]-Nicotine 1,1'-dioxide

3-[[(2S)-1-Methylpyrrolidine 1-oxide]-2α-yl]pyridine 1-oxide

[2S,(-)]-1-Methyl-2α-(1-oxylatopyridinium-3-yl)pyrrolidine 1-oxide