COC(Nc1nc(NC(OC)OC)nc(NC(OC)OC)n1)OC    mol4278    0_1
COC(Nc1nc(NC(OC)OC)[nH+]c(NC(OC)OC)n1)OC    mol4278    1_1
COC(Nc1nc(NC(OC)OC)nc([NH2+]C(OC)OC)n1)OC    mol4278    1_2