(2R,4S,5R)-4-Hydroxy-8-[(2R,3S,5R)-2-hydroxymethyl-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yloxy]-8-oxo-7,9,19-trioxa-1,16-diaza-8λ5-phospha-tricyclo[12.3.1.12,5]nonadec-14(18)-ene-15,17-dione                                                                                                                                                              在
                                                                                                                                                                                 
ammonium hydroxide                                                                                                                                  作用下,
                                                                                                                                                                                        反应 120.0h,
                                                                                                                以100%的产率得到Phosphoric acid (2R,3S,5R)-5-[5-(4-amino-butyl)-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl]-3-hydroxy-tetrahydro-furan-2-ylmethyl ester (2R,3S,5R)-2-hydroxymethyl-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester