2,5-anhydro-1-deoxy-1-(uracil-1'-yl)-6-(5''-(N-Boc-L-prolinyl-N'-amido)-1'',5''-dideoxy-2'',3''-O-isopentylidene-β-D-ribos-1''-yl)-D-glucitol                                                                                                                                                              在
                                                                                                                                                                                 
水   、                                                                                                  
三氟乙酸                                                                                                                                  作用下,
                                                                                                                                                                                                                            以70%的产率得到2,5-anhydro-1-deoxy-1-(uracil-1'-yl)-6-(5''-(N-L-prolinyl-N'-amido)-1'',5''-dideoxy-2'',3''-dihydroxy-β-D-ribos-1''-yl)-D-glucitol