5-Amino-pyridine-2-sulfonyl chloride   、                                                                                      
5-[1-(3-Amino-phenyl)-propyl]-6-hydroxy-2-phenethyl-2-propyl-[1,3]dioxin-4-one                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以94%的产率得到5-Amino-pyridine-2-sulfonic acid {3-[1-(6-hydroxy-4-oxo-2-phenethyl-2-propyl-4H-[1,3]dioxin-5-yl)-propyl]-phenyl}-amide