Using COc1ccc2sc3c(C)cc4c(c3c2c1)C(=O)N(CCN(C)C)C4=O to produce Cc1cc2c(c3c1sc1ccc(O)cc13)C(=O)N(CCN(C)C)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.