2, {7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,} 1-b\]furan-8-carboxaldehyde, 1,2-dihydro-5,6,9,17,19, 21-hexahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1, 11-dioxo-, {8-[O-(2-piperidinoethyl)oxime],} 21-acetate 22912-87-4 AIDS-160083 AIDS160083 NCI 143-479 NSC143479 Rifamycin, {3-[[[2-(1-piperidinyl)ethoxy]imino]methyl]-}