6-.alpha.-D-Mannopyranosyl 3'-azido-3'-deoxy-5'-thymidinyl phosphate AIDS-166071 AIDS166071 Phosphoric acid (2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester (2R,3S,4S,5S)-3,4,5,6-tetrahydroxy-tetrahydro-pyran-2-ylmethyl ester