2-Pyridinecarboxamide, 5-amino-6-(7-amino-5,8-dihydro-6-methoxy-5,8-dioxo-2-quinolinyl)-4-(2-hydroxy-3,4-dimethoxyphenyl)-N-(2-hydroxyethyl)-3-methyl- 99520-45-3 AIDS-000086 AIDS000086 STN-NHCH2CH20H Streptonigrin analog Streptonigrin carboxamidoethanol