Using CCCCCCCCC(NC1CSc2ccccc2N(CC(=O)OC(C)(C)C)C1=O)C(=O)OCC to produce CCCCCCCCC(NC1CSc2ccccc2N(CC(=O)O)C1=O)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.