Abstract: A series of 23 1-[(2-hydroxyethoxy)methyl]-6-(phenylthio)thymine derivatives that were highly potent inhibitors of wild-type human immunodeficiency virus type 1 strain IIIB (HIV-1/IIIB) replication in CEM cells were evaluated against a panel of HIV-1 mutant strains containing the replacement of
leucine by isoleucine at position 100 (100-Leu-->Ile),
103-Lys-->Asn,
106-Val-->Ala,
138-Glu-->Lys,
181-Tyr-->Cys,
181-Tyr-->Ile, or 188-Tyr-->His in their
reverse transcriptase (
RT).