10-(6-Hydroxy-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-1,3-dimethyl-1,10-dihydro-9-oxa-1,3-diaza-anthracene-2,4-dione                                                                                                                                                              在
                                                                                                                                                                                 
三氯氧磷                                                                                                                                  作用下,
                                                                                                                                                                                        反应 1.0h,
                                                                                                                以72%的产率得到10-(6-Chloro-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-1,3-dimethyl-1,10-dihydro-9-oxa-1,3-diaza-anthracene-2,4-dione