3-hydroxy-4-(5-hydroxy-7-methyl-1,4-dioxo-1,4-dihydro-2-naphthalenyl)-5-methyl-1a,7a-dihydronaphtho[2,3-b]oxirene-2,7-dione 50886-69-6 AIDS-010676 AIDS010676 Batacanone Diosquinone NSC342731