Using COC(C)(OC)c1ccn2c(-c3ccnc(-c4ccncc4)n3)cnc2n1 to produce CC(=O)c1ccn2c(-c3ccnc(-c4ccncc4)n3)cnc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.