反应详情

A mixture of ethyl 6-(tert-butoxycarbonylamino)-3-pyridazine carboxylate (2.4 g), 1-(benzyloxy)-2-bromomethyl-4-bromobenzene (3.2 g) and sodium hydride (0.5 g of a 50% W/W dispersion in oil) in DMF was stirred for 2 hours. The mixture was diluted with diethyl ether and washed with water. The organic solution was dried (MgSO4), filtered and evaporated. Ethyl 6-[N-(2-benzyloxy-5-bromobenzyl)-N-(tert-butoxycarbonyl)amino]-3-pyridazinecarboxylate was isolated by flash chromatography, eluting with 2% ethyl acetate in CH2Cl2. Yield: 1.7 g.

1. washwashed with water
2. dry with materialThe organic solution was dried (MgSO4)
3. filtrationfiltered
4. customevaporated