Using C#Cc1ccc(Cn2cc(-c3ccc(OC)cc3)ccc2=O)cn1 to produce CCc1ccc(Cn2cc(-c3ccc(OC)cc3)ccc2=O)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.