4-s-butyl-1-ethoxycarbonyl-1,4-dihydropyridine

2-(2-(2,2-diethoxyethyl)-3-methylpentyl)-1,3-dioxolane

4-(sec-butyl)-1-(tert-butyldimethylsilyl)-1,4-dihydropyridine

吡啶

ethyl pyridin-1-ium-1-carboxylate,chloride