Ethyl 2-amino-5,6,7,8-tetrahydro-4H-cyclo-heptabthiophene-3-carboxylate

In the structure of the title compound, C 12H 17NO 2S, the terminal ester group lies in the plane of the thiophene ring system. The cycloheptene ring adopts a half-chair conformation. There are intramolecular N-Hâ¯O and C-Hâ¯O interactions, and intermolecular N-Hâ¯O and C-Hâ¯Ï interactions. © 2005 International Union of Crystallography Printed in Great Britain - all rights reserved