Using CCCCCN1C(=O)C(N)c2ccc(OC)cc21, C=CC(=O)OCC to produce CCCCCN1C(=O)C(N)(CCC(=O)OCC)c2ccc(OC)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.