... 15-9 5,6,7,7a-Tetrahydrothieno[3,2-c]pyridine-2(4H)-one hydrochloride Synonyms: 5,6,7,7a- ... 6,7,7a-Tetrahydrothieno[3,2-c]pyridine-2(4H)-one hydrochloride;2-oxo-2,4,5,6,7,7a-hexahydrothieno [3 ... ,2-c] pyridine. Hydrochloride;5,6,7,7a-Tetrahydrothieno ... [3,2-c]pyridin-2(4H)-one HCL;2-oxo-2,4,5,6 ...