N-[6-(2-isopropyl-2H-pyrazol-3-yl)-2,4-dioxo-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl]-methanesulfonamide   、                                                                                      
氯甲酸丁酯                                                                                                                                                                                                                                                                                                          以to yield [6-(2-isopropyl-2H-pyrazol-3-yl)-2,4-dioxo-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl]-methanesulfonyl-carbamic acid butyl ester的产率得到[6-(2-isopropyl-2H-pyrazol-3-yl)-2,4-dioxo-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl]-methanesulfonyl-carbamic acid butyl ester