Using CI, O=c1[nH]c2cccnc2n1-c1ccc(N2CCn3c2nc2ccccc23)cc1 to produce Cn1c(=O)n(-c2ccc(N3CCn4c3nc3ccccc34)cc2)c2ncccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.