Using COC(=O)CCC1=CCCN(Cc2ccc(NC(C)=O)cc2)C1=O to produce CC(=O)Nc1ccc(CN2CCC=C(CCC(=O)O)C2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.