(R)-6,6-difluoro-5-[2-fluoro-5-(2-methyl-2H-pyrazol-3-yl)-phenyl]-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)-6,6-difluoro-5-[2-fluoro-5-(2-methyl-2H-pyrazol-3-yl)-phenyl]-5,7,7-trimethyl-[1,4]oxazepan-3-thione (137 mg, 98% yield) as a colorless oil的产率得到(R)-6,6-difluoro-5-[2-fluoro-5-(2-methyl-2H-pyrazol-3-yl)-phenyl]-5,7,7-trimethyl-[1,4]oxazepan-3-thione