Using CCOC(=O)c1cc(OCC(=O)N2CCN(C(=O)OC(C)(C)C)CC2)c2ccc(C)cc2n1 to produce Cc1ccc2c(OCC(=O)N3CCN(C(=O)OC(C)(C)C)CC3)cc(C(=O)O)nc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.