[H][C@@]12CC3=C(C(O)=C(N=C(O)CNC(C)(C)C)C(O)=C3N(C)C)C(=O)C1=C(O)[C@]1(O)C(=O)C(C(O)=N)=C(O)C([H])(N(C)C)[C@]1([H])C2