(2,2,2-trichloroethyl) (3R)-3-(((tert-butyl(dimethyl)silyl)oxy)methyl)tetrahydropyridazine-1(2H)-carboxylate 、 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
以71%的产率得到2-tert-butyl 1-(2,2,2-trichloroethyl) (3S)-3-(((6R)-6-(((tert-butyl(dimethyl)silyl)oxy)methyl)-2-((2,2,2-trichloroethoxy)carbonyl)tetrahydropyridazin-1(2H)-yl)carbonyl)tetrahydropyridazine-1,2-dicarboxylate