N-Boc-3,4-dihydro-2H-pyridine , its cas register number is 131667-57-7. It also can be called tert-Butyl 3,4-dihydropyridine-1(2H)-carboxylate ; 1(2H)-Pyridinecarboxylicacid, 3,4-dihydro-, 1,1-dimethylethyl ester .