Using CC(C)(C)OC(=O)N1CCNC[C@@H]1CCO, O=C(O)c1cccc2cccnc12 to produce CC(C)(C)OC(=O)N1CCN(C(=O)c2cccc3cccnc23)C[C@@H]1CCO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.