Using CCN1C(=O)Cc2cc(O)c(CCCOS(=O)(=O)c3ccc(C)cc3)cc21 to produce CCN1C(=O)Cc2cc3c(cc21)C=CCO3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.