Using COCCCN1CCc2c(c3cc(C)ccc3n2CC(C)(O)c2ccncc2)C1 to produce COCCCN1CCc2c(c3cc(C)ccc3n2C=C(C)c2ccncc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.