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Antimicrob Agents Chemother. Mar 1992; 36(3): 672–676.
PMCID: PMC190578
Activities of the four optical isomers of 2',3'-dideoxy-3'-thiacytidine (BCH-189) against human immunodeficiency virus type 1 in human lymphocytes.
R F Schinazi, C K Chu, A Peck, A McMillan, R Mathis, D Cannon, L S Jeong, J W Beach, W B Choi, S Yeola
, et al.
Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia 30322.
Abstract
Four different isomers of 2',3'-dideoxy-3'-thiacytidine [beta-DL-(+-)-BCH-189] were evaluated in primary human lymphocytes infected with human immunodeficiency virus type 1. The beta-L-(-) isomer was the most potent enantiomer, with a median effective concentration of 1.8 nM and no discernible cytotoxicity up to 100 microM. The relative order of potencies for the isomers was beta-L-(-) greater than beta-DL-(+-) racemic greater than beta-D-(+) greater than alpha-L-(+) greater than alpha-D-(-). The beta-L-(-) enantiomer was as potent as 3'-azido-3'-deoxythymidine.
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