Using CC(C)(C)c1nc(C2CCC2)cc(N2CCN(CCCCN)CC2)n1, O=C(O)c1cncnc1 to produce CC(C)(C)c1nc(C2CCC2)cc(N2CCN(CCCCNC(=O)c3cncnc3)CC2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.