AIDS-165742 AIDS165742 Naphtho[2,3-d]oxazole-3(2H)-propanesulfonic acid, 2-[(2E,4E)-4-[tetrahydro-1-(2-methoxyethyl)-4,6-dioxo-2-thioxo-5(2H)-pyrimidinylidene]-2-butenylidene]-, (2E)- S-165(*Triethylammonium salt*)