DL-α-[(2-amino-1,2-dioxoethyl)amino]-2-furanacetic acid, diphenylmethyl ester                                                                                                                                                                                              以
                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                                                        以DL-α-[(2-amino-1,2-dioxoethyl)amino]-2-furanacetic acid is obtained as white crystals, m.p. 174° (water)的产率得到DL-α-[(2-amino-1,2-dioxoethyl)amino]-2-furanacetic acid