24237-44-3 BRN 1075541 Ethyl 4,5,6,7-tetrahydro-2-aminothieno(2,3-c)pyridine-3-carboxylate Nor-Y 3642 Thieno(2,3-c)pyridine-3-carboxylic acid, 4,5,6,7-tetrahydro-2-amino-, ethyl ester,