| 摘要 |
Compounds of formula (I) are useful as inhibitors of HIV reverse transcriptase. In formula (I); R1 is C1-3 alkyl substituted with 1-7 halogen; R2 is selected from C1-5 alkyl substituted with 1-2 R4, C2-5 alkenyl substituted with 1-2 R4, and C2-5 alkynyl substituted with 1 R4; R3, at each occurrence, is independently selected from C1-4 alkyl, OH, C1-4 alkoxy, F, Cl, Br, I, NR5R5a, NO2, CN, C(O)R6, NHC(O)R7 and NHC(O)NR5R5a; alternatively, if two R3's are present and are attached to adjacent carbons, then they may combine to form -OCH2O-; R4 is selected from C3-5 cycloalkyl substituted with 0-2 R3, phenyl substituted with 0-5 R3, and a 5-6 membered heterocyclic system containing 1-3 heteroatoms selected from O, N, and S, substituted with 0-2 R3; R5 and R5a are independently selected from H and C1-3 alkyl; R6 is selected from H, OH, C1-4 alkyl, C1-4 alkoxy, and NR5R5a; R7 is selected from C1-3 alkyl and C1-3 alkoxy; R8 is selected from H, C3-5 cycloalkyl, and C1-3 alkyl; and n is selected from 0, 1, 2, 3 and 4.
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