Using Cc1ccnc(N2CCC(N=C(NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C)C2)c1 to produce Cc1ccnc(N2CCC(NC(=N)N)C2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.