硼氢化钠 、
(8R,9R)-8-hydroxy-6-methoxymethyl-2,3-dimethyl-9-phenyl-7,8,9,10-tetrahydroimidazo[1,2-h][1,7]naphthyridin-7-one 在
二氯甲烷 、 silica gel 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以gives 80 mg of the title compound [Rf=0.54 (methylene chloride/methanol=13/1)] of melting point 182-3° C. (decomp.)的产率得到(7S,8R,9R)-7,8-Dihydroxy-6-methoxymethyl-2,3-dimethyl-9-phenyl-7,8,9,10-tetrahydroimidazo[1,2-h][1,7]naphthyridine