N-{5-bromo-2-[4-(5-cyclopropyl-3-methylpyridin-2-yl)piperazine-1-carbonyl]phenyl}methanesulfonamide   、                                                                                      
(R)-4-甲基-2-噁唑烷酮                                                                                                                                                                                                                                                                                                          以the title compound (35.9 mg) was obtained的产率得到(R)-3-{4-[4-(5-cyclopropyl-3-methylpyridin-2-yl)piperazine-1-carbonyl]-3-methanesulfonylaminophenyl}-4-methyloxazolidin-2-one