Using CCCN(CCC(=O)OCC)C(=O)c1ccc2c(c1)nc(CSc1ccc(C(=N)N)cc1)n2C to produce CCCN(CCC(=O)O)C(=O)c1ccc2c(c1)nc(CSc1ccc(C(=N)N)cc1)n2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.