Using O=C(O)c1cc(OCc2ccccc2)c(OCc2ccccc2)cn1, NC(=O)N1CCCN(N)C1=O to produce NC(=O)N1CCCN(NC(=O)c2cc(OCc3ccccc3)c(OCc3ccccc3)cn2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.