3-(1-methylethoxy)-4-[4'-[[[5,6,7,8-tetrahydro-2-(trifluoromethyl)-4-quinazolinyl]amino]methyl][1,1'-biphenyl]-2-yl]-3-cyclobutene-1,2-dione 以83%的产率得到3-hydroxy-4-[4'-[[[5,6,7,8-tetrahydro-2-(trifluoromethyl)-4-quinazolinyl]amino]methyl][1,1'-biphenyl]-2-yl]-3-cyclobutene-1,2-dione