InChI=1S/C11H18N5O13P3/c12-11-14-8-5(9(19)15-11)13-2-16(8)10-7(18)6(17)4(28-10)1-27-30(20,21)3-31(22,23)29-32(24,25)26/h2,4,6-7,10,17-18H,1,3H2,(H,20,21)(H,22,23)(H2,24,25,26)(H3,12,14,15,19)/t4-,6-,7-,10-/m1/s1 PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER NC1=Nc2n(cnc2C(=O)N1)[C@@H]3O[C@H](CO[P@](O)(=O)C[P@](O)(=O)O[P](O)(O)=O)[C@@H](O)[C@H]3O NC1=Nc2n(cnc2C(=O)N1)[CH]3O[CH](CO[P](O)(=O)C[P](O)(=O)O[P](O)(O)=O)[CH](O)[CH]3O