(R)-5-[2,4-difluoro-5-(2-methoxy-pyrimidin-5-yl)-phenyl]-6,6-difluoro-5,7,7-trimethyl-[1,4]oxazepan-3-one   、                                                                                      
劳森试剂                                                                                                                                                                                              以
                                                                                         
1,4-二氧六环                                                                                  为溶剂,
                                                                                                                                                                                        以yielded the (R)-5-[2,4-difluoro-5-(2-methoxy-pyrimidin-5-yl)-phenyl]-6,6-difluoro-5,7,7-trimethyl-[1,4]oxazepan-3-thione (53 mg, 62% yield) as a white solid的产率得到(R)-5-[2,4-difluoro-5-(2-methoxy-pyrimidin-5-yl)-phenyl]-6,6-difluoro-5,7,7-trimethyl-[1,4]oxazepan-3-thione