Using COCOc1c(C)c(-c2cc3cc(N)ccc3o2)oc(=O)c1C to produce Cc1c(-c2cc3cc(N)ccc3o2)oc(=O)c(C)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.