methanesulfonic acid (R)-2-(5-tert-butoxy-2-isopropoxy-benzothiazol-7-yl)-2-hydroxy-ethyl ester   、                                                                                      
分特拉明                                                                                                                                                                                              以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 20.0h,
                                                                                                                以(R)-1-(5-tert-Butoxy-2-isopropoxy-benzothiazol-7-yl)-2-(1,1-dimethyl-2-phenyl-ethylamino)-ethanol is obtained by reversed phase column chromatography的产率得到(R)-1-(5-tert-butoxy-2-isopropoxy-benzothiazol-7-yl)-2-(1,1-dimethyl-2-phenyl-ethylamino)-ethanol