2-(.alpha.-D-Mannopyranosyl)ethyl 3'-azido-3'-deoxy-5'-thymidinyl phosphate AIDS-166073 AIDS166073 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, 2-((2S,3S,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-ethyl ester