Using O=C1CCCN1CCO, CCCc1nc2cnc3cc(O)ccc3c2n1CC(C)C to produce CCCc1nc2cnc3cc(OCCN4CCCC4=O)ccc3c2n1CC(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.