Using CCCCCI, C=CCN1CCN(c2nc3ccccc3c(=O)[nH]2)CC1 to produce C=CCN1CCN(c2nc(OCCCCC)c3ccccc3n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.