N-[6-(2-methyl-2H-pyrazol-3-yl)-2,4-dioxo-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl]-methanesulfonamide   、                                                                                      
2-甲氧基氯甲酸乙酯                                                                                                                                                                                                                                                                                                          以to yield methanesulfonyl-[6-(2-methyl-2H-pyrazol-3-yl)-2,4-dioxo-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl]-carbamic acid 2-methoxy-ethyl ester的产率得到methanesulfonyl-[6-(2-methyl-2H-pyrazol-3-yl)-2,4-dioxo-7-trifluoromethyl-1,4-dihydro-2H-quinazolin-3-yl]-carbamic acid 2-methoxy-ethyl ester