Using COc1ccc2[nH]c3c(C=O)c4ccncc4c(C)c3c2c1 to produce Cc1c2cnccc2c(C=O)c2[nH]c3ccc(O)cc3c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.