benzyl N-(5-chloropentyl)-N-[[4-[(6-hydroxy-7-methoxyquinazolin-4-yl)amino]-7-(6-methylpyridin-3-yl)oxy-1,3-benzodioxol-5-yl]methyl]carbamate 在
caesium carbonate 作用下,
以
二甲基硫 为溶剂,
以60%的产率得到Benzyl 21-methoxy-9-(6-methylpyridin-3-yl)oxy-5,7,19-trioxa-2,13,24,26-tetrazapentacyclo[18.6.2.03,11.04,8.023,27]octacosa-1(26),3,8,10,20,22,24,27-octaene-13-carboxylate