Using COc1cccc(Cc2nnc(Nc3ccc4c(cnn4C(=O)OC(C)(C)C)c3)o2)c1 to produce COc1cccc(Cc2nnc(Nc3ccc4[nH]ncc4c3)o2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.