sodium {[3-(5,6-dihydro-1,4,2-dioxazin-3-yl)pyridin-2-yl]sulfonyl}[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]azanide   、                                                                                      
氯化胆碱                                                                                                                                                                                              以
                                                                                         
甲醇   、                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以93.3%的产率得到2-hydroxy-N,N,N-trimethylethanaminium {[3-(5,6-dihydro-1,4,2-dioxazin-3-yl)pyridin-2-yl]sulfonyl}[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]azanide