tert-butyl (3aS,3bR,11S,11aR)-11-hydroxy-2,2-dimethyl-5-oxo-3a,5,11,11a-tetrahydro[1,3]benzodioxolo[5,4-f]-1,7-naphthyridine-4(3bH)-carboxylate 在
盐酸 作用下,
以
甲醇 为溶剂,
以100%的产率得到(6aR,7S,8R,9S)-7,8,9-trihydroxy-5-oxo-5,6,6a,7,8,9-hexahydrobenzo[f]-1,7-naphthyridin-4-ium chloride