2-{[1-Dimethylamino-meth-(E)-ylidene]-thiocarbamoyl}-2-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-propionic acid methyl ester   、                                                                                      
丙烯酸甲酯(MA)                                                                                                                                                                                              以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        以85%的产率得到4-Dimethylamino-2-[1-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-1-methoxycarbonyl-ethyl]-5,6-dihydro-4H-[1,3]thiazine-5-carboxylic acid methyl ester