Ethyl 2-amino-6-benzyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate

Abstract

In the title compound, C17H20N2O2S, the tetrahydropyridine ring adopts an envelope conformation with the N atom at the flap position; the phenyl ring makes a dihedral angle of 81.06 (10)° with the thiophene ring. The amino group links with the carbonyl O atom via intramolecular N—H...O hydrogen bonding, forming a six-membered ring. In the crystal, intermolecular N—H...O hydrogen bonds link the molecules into infinite chains running along the b axis.