Using CN(C)C=O, OC1(c2cccc(Sc3ccc4c(c3)C=CC3=NCCN34)c2)CCOCC1 to produce COC1(c2cccc(Sc3ccc4c(c3)C=CC3=NCCN34)c2)CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.