[NH2:1][C:2]1[N:11]=[C:10]2[C:5]([CH2:6][CH2:7][C:8]3[C:14]([C:15](O)=[O:16])=[CH:13][N:12]([CH3:18])[C:9]=32)=[CH:4][N:3]=1.C1C=CC2N(O)N=[N:25]C=2C=1.N.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[NH2:1][C:2]1[N:11]=[C:10]2[C:5]([CH2:6][CH2:7][C:8]3[C:14]([C:15]([NH2:25])=[O:16])=[CH:13][N:12]([CH3:18])[C:9]=32)=[CH:4][N:3]=1To a solution of 8-amino-1-methyl-4,5-dihydro-1H-1,7,9-triaza -cyclopenta[a]naphthalene-3-carboxylic acid M2 (0.08 mmol) in dry DMF (4 mL), HOBT.NH3 (0.164 mmol), TBTU (0.164 mmol) and DIEA (0.328 mmol) were added. The mixture was stirred at rt for 24 h then the solvent was evaporated. The residue was suspended in 10 mL of water, filtered, washed with water and dried in vacuo, providing the title compound (55% yield). ESI (+) MS: m/z 244 (MH+). 1H NMR: 2.73 (t, J=7.44, 2H), 3.00 (t, J=7.44, 2H), 4.04 (s, 3H), 6.94 (bs, 1H), 7.35 (bs, 1H), 7.73 (s, 1H), 7.96 (s, 1H), 7.76 (bs, 3H).
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