1-[1-((R)-1-benzyloxymethylprop-2-ynyloxy)-2-bromoethyl]-3-methyl-1H-pyrimidine-2,4-dione 在
偶氮二异丁腈 、
三正丁基氢锡 作用下,
以
苯 为溶剂,
反应 2.0h,
生成 3-Methyl-1-((2S,3aR,4S,6aR)-3a-methyl-4-phenyl-hexahydro-furo[3,4-b]furan-2-yl)-1H-pyrimidine-2,4-dione 、 syn-1-(5'-benzyloxymethyl-4-methylenetetrahydrofuran-2-yl)-3-methyl-(1H,3H)-pyrimidine-2,4-dione 、 anti-1-(5'-benzyloxymethyl-4-methylenetetrahydrofuran-2-yl)-3-methyl-(1H,3H)-pyrimidine-2,4-dione