C1 (CC (C@@) 2 ([C@@H] (CC (N) = O) (C@@) 3 ((C@@) 4 ([N +] 5 = C ([C@H] ([C@@] 4 (CC (N) = O) C) CCC (N) = O) C (C) = 6 C4 (N +) = C (C = C7 (N +) 8 = C ([C@H] (C7 (C) C) CCC (N) = O) C (C) = C2N3 (Co-3) 568 ((N +) 2 = CN ([C@H] 3 O [C@@H] ([C@@H] (OP (O (C@@H) (CN1) C) ([O -]) = O) [C@H] 3 O) CO) C1 = CC (C) = C (C = C21) C) C) [C@H] ([C@@] 4 (CC (N) = O) C) CCC (N) = O) C) [H]) C) = O