5-羟基嘧啶-2-甲酸甲酯 、 (3R,4aR,6aS,7R,10bR)-7-(2-bromoethyl)-3-cyclopentyl-6a,10b-dimethyl-8-dihydromethylenedecahydro-1H-naphtho[2,1-d][1,3]dioxin 在
potassium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 4.0h,
以50.94%的产率得到Methyl 5-(2-((3R,4aR,6aS,7R,10bR)-3-cyclopentyl-6a,10b-dimethyl-8-dihydromethylene decahydro-1H-naphtho[2,1-d][1,3]dioxin-7-yl)ethoxy)pyrimidine-2-carboxylate