Using CCOC(=O)c1ccc2c(c1)N(CC(=O)OC(C)(C)C)C(=O)C(CCCc1ccc(OC)cc1)S2 to produce CCOC(=O)c1ccc2c(c1)N(CC(=O)O)C(=O)C(CCCc1ccc(OC)cc1)S2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.