methyl 5-(2-cyanopyrid-5-yl)pentanoate

6-(4-carboxybutyl)-imidazo[1,5-a]pyridine

6-<4-(methoxycarbonyl)butyl>imidazo<1,5-a>pyridine

2-(N-formylaminomethyl)-5-(4-methoxycarbonylbutyl)pyridine

methyl 5-<2-(aminomethyl)pyrid-5-yl>pentanoate