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Johnson Paul D

Researcher at Pfizer

Publications -  36
Citations -  1304

Johnson Paul D is an academic researcher from Pfizer. The author has contributed to research in topics: HIV Protease Inhibitor & Sulfonamide. The author has an hindex of 18, co-authored 36 publications receiving 1265 citations. Previous affiliations of Johnson Paul D include Brown University & General Electric.

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Journal ArticleDOI

Tipranavir (PNU-140690): A Potent, Orally Bioavailable Nonpeptidic HIV Protease Inhibitor of the 5,6-Dihydro-4-hydroxy-2-pyrone Sulfonamide Class∇

TL;DR: Crystallographic studies provided further information on important binding interactions responsible for high enzymatic binding and led to compound VI, which inhibits HIV protease with a Ki value of 8 pM and shows an IC90 value of 100 nM in antiviral cell culture.
Journal ArticleDOI

Discovery, synthesis, and bioactivity of bis(heteroaryl)piperazines. 1. A novel class of non-nucleoside HIV-1 reverse transcriptase inhibitors.

TL;DR: Replacement of the substituted aryl moiety with various substituted indoles provided bis(heteroaryl)piperazines (BHAPs) that were 10-100-fold more potent than U-80493E.
Journal ArticleDOI

Structure-Based Design of HIV Protease Inhibitors: 5,6-Dihydro-4-hydroxy-2-pyrones as Effective, Nonpeptidic Inhibitors

TL;DR: From this study, compound XIX exhibited reasonably high enzyme inhibitory activity and showed antiviral activity in the cell-culture assay and provided a research direction which led to the discovery of active 5,6-dihydro-4-hydroxy-2-pyrones as potential agents for the treatment of HIV infection.