1-{[3,5-difluoro-2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-3-[2-(2-methoxyphenyl)-2-oxoethyl]-6-(2,2,2-trifluoroethyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione 在
potassium 2-ethylhexanoate 作用下,
以
乙酸乙酯 为溶剂,
反应 16.0h,
以82%的产率得到1-{[3,5-difluoro-2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-3-[2-(2-methoxyphenyl)-2-oxoethyl]-6-(2,2,2-trifluoroethyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione potassium salt