Using CCOC(=O)NC1COc2ccc(OCCNC(=O)OC(C)(C)C)cc2C1Cc1ccccc1 to produce CCOC(=O)NC1COc2ccc(OCCN)cc2C1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.