2-[6-(3-fluoro-4-hydroxybenzyl)-1-oxo-1,2,4,7-tetrahydro-3H-indolo[2,3-c][1,7]naphthyridin-3-yl]-N-methylacetamide 在
甲醇 、 sodium tetrahydroborate 作用下,
以81%的产率得到rac-2-[6-(3-fluoro-4-hydroxybenzyl)-1-hydroxy-1,2,4,7-tetrahydro-3H-indolo[2,3-c][1,7]naphthyridin-3-yl]-N-methylacetamide