Synonyms: 2-Amino-3-cyano-4,5,6,7-tetrahydro-5H-thieno[2,3-c]pyridine-6-carboxylicacid tert-butyl ester;2-Amino-3-cyano-4,7-dihydro-5H-thieno[2,3-c]pyridine-6-carboxylic acidtert-butyl ester;2-Amino-3-cyano-4,7-dihydrothieno[2,3-c]pyridine-6(5H)-carboxylic acid1,1-dimethylethyl ester