1-(methoxycarbonyl)-4-phenyl-1,2,3,4-tetrahydropyridine
1-(methoxycarbonyl)-2-phenyl-1,2,5,6-tetrahydropyridine
1-(methoxycarbonyl)-1,2-dihydropyridine
3-Bromo-2-(4-methoxy-phenyl)-piperidine-1-carboxylic acid methyl ester
1-methoxycarbonyl-2-methoxy-1,2,5,6-tetrahydropyridine