{5-[3-Carbamoyl-1-(tetrahydro-pyran-2-yl)-1H-indazol-5-yl]-4-methyl-pyridin-3-ylmethyl}-ethyl-carbamic acid tert-butyl ester 、
N,N-二甲基甲酰胺二甲基缩醛 在
肼 作用下,
以
溶剂黄146 为溶剂,
反应 23.0h,
以71%的产率得到ethyl-{4-methyl-5-[1-(tetrahydro-pyran-2-yl)-3-(4H-[1,2,4]triazol-3-yl)-1H-indazol-5-yl]-pyridin-3-ylmethyl}-3-ylmethyl-carbamic acid tert-butyl ester