Using COC(=O)CCCC(=O)N(CCc1c[nH]c2ccccc12)CC(C)C to produce CC(C)CN(CCc1c[nH]c2ccccc12)C(=O)CCCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.