Using O=C=Nc1cccc2ccccc12, O=C1NC2(CCCCC2)NC12CCCCC2 to produce O=C(Nc1cccc2ccccc12)N1C(=O)C2(CCCCC2)NC12CCCCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.