5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one hydrochloride (1:1)115473-15-9100 % similar 5-Trityl-5,6,7,7a-tetrahydrothieno[3,2-c]pyridin-2(4H)-one109904-26-935 % similar Isonipecotic acid hydrochloride5984-56-533 % similar Pyrrolidin-3-one hydrochloride3760-52-932 % similar Piperidin-3-one hydrochloride61644-00-631 % similar Methyl isonipecotate hydrochloride7462-86-430 % similar