Using COC1(CN(CC(=O)OCc2ccccc2)C(=O)OC(C)(C)C)CCCCC1 to produce COC1(CN(CC(=O)O)C(=O)OC(C)(C)C)CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.