3-ethyl-5-(4-nitro-benzylidene)-thiazolidine-2,4-dione                                                                                                                                                              在
                                                                                                                                         palladium-carbon                                                                                                                                                                          作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以5-(4-aminobenzyl)-3-ethyl-1,3-thiazolidine-2,4-dione was obtained as yellow crystals-(3.05 g, yield 94%) from a fraction的产率得到5-(4-Aminobenzyl)-3-ethylthiazolidine-2,4-dione