(+)-trans-3-Imino-1-phenylhexahydro-3H-oxazolo(3,4-a)pyridine hydrochloride 3H-Oxazolo(3,4-a)pyridine, hexahydro-3-imino-1-phenyl-, hydrochloride (E)-(+)- 5583-12-0 75343-55-4