Using Cc1nc(NC(=N)N)sc1C(=O)O, CCCCOC(=O)COCCCN to produce CCCCOC(=O)COCCCNC(=O)c1sc(NC(=N)N)nc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.