Using Cc1c[nH]c2ncnc(N3CCC(N(C)C(=O)OC(C)(C)C)CC3)c12 to produce CNC1CCN(c2ncnc3[nH]cc(C)c23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.