Using CCCC(=O)C1=C(O)CC(c2ccc(OC)c(NC(C)=O)c2)CC1=O, C=CCON to produce C=CCON=C(CCC)C1=C(O)CC(c2ccc(OC)c(NC(C)=O)c2)CC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.