N4-acetyl-1-(hepta-O-acetyl-β-gentibiosyl)cytosine                                                                                                                                                              在
                                                                                                                                                                                 
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 N-{2-Oxo-1-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxymethyl)-tetrahydro-pyran-2-yl]-1,2-dihydro-pyrimidin-4-yl}-acetamide