Using CCCCCCCCc1ccc2c(c1)CC(O)C2CC(CO)(CO)NC(C)=O to produce CCCCCCCCc1ccc2c(c1)CC=C2CC(CO)(CO)NC(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.