6-benzyl-2-chloro-8,8-dimethyl-5,6,7,8-tetrahydro-1,6-naphthyridine 、
异丙醇 以2-isopropoxy-8,8-dimethyl-5,6,7,8-tetrahydro-1,6-naphthyridine hydrochloride (0.0667 g, 19%) was obtained as a white powder的产率得到2-isopropoxy-8,8-dimethyl-5,6,7,8-tetrahydro-1,6-naphthyridine hydrochloride