Using O=C1Nc2ccccc2C(c2ccccc2)=NC1N1C(=O)c2ccccc2C1=O to produce NC1N=C(c2ccccc2)c2ccccc2NC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.