Using O=C(Nc1cnc2ccccc2c1Cl)c1ccccc1, NOCc1ccccc1 to produce c1ccc(COn2c(-c3ccccc3)nc3cnc4ccccc4c32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.