Using Nc1c(O[C@H](Cn2ccnc2)c2ccccc2)ccc2c1CCCC2=O, O=C(O)c1ccccn1 to produce O=C(Nc1c(O[C@H](Cn2ccnc2)c2ccccc2)ccc2c1CCCC2=O)c1ccccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.