Using CCOC(=O)c1ccc2[nH]c(-c3cc(-c4ccncc4)nnc3OC)c(-c3cnn(C)c3)c2c1 to produce Cn1cc(-c2c(-c3cc(-c4ccncc4)n[nH]c3=O)[nH]c3ccc(C(=O)O)cc23)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.