Using O=CN1CCCCC1, CCCCCCN1c2ccc(OC)cc2Sc2cc(OC)ccc21 to produce CCCCCCN1c2ccc(OC)cc2Sc2c1ccc(OC)c2C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.