5',4N-bis((1,4-dihydro-1-methyl-3-pyridinyl)carbonyl)-2',3'-dideoxycytosine

[5-[4-[(1-methyl4H-pyridine-3-carbonyl)amino]-2-oxo-pyrimidin-1-yl]oxo lan-2-yl]methyl 1-methyl-4H-pyridine-3-carboxylate