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M9650102.TXT
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1996-03-09
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Document 0102
DOCN M9650102
TI Potent human immunodeficiency virus type 1 protease inhibitors that
utilize noncoded D-amino acids as P2/P3 ligands.
DT 9605
AU Jungheim LN; Shepherd TA; Baxter AJ; Burgess J; Hatch SD; Lubbehusen P;
Wiskerchen M; Muesing MA; Lilly Research Laboratories, Eli Lilly and
Company, Indianapolis,; Indiana 46285-1523, USA.
SO J Med Chem. 1996 Jan 5;39(1):96-108. Unique Identifier : AIDSLINE
MED/96136792
AB Noncoded D-amino acids have been designed to replace the quinaldic
amide-asparaginyl moiety (P2/P3 ligand) found in several potent human
immunodeficiency virus (HIV) protease inhibitors such as LY289612. The
substituted nitrogen, optimally an N-methanesulfonyl moiety, served as a
CH2CONH2 (asparagine side chain mimic), while the amino acid side chain
became the backbone and P3 ligand of these novel inhibitors. Compounds
derived from S-aryl-D-cysteine proved to be potent HIV protease
inhibitors which also exhibited potent whole cell antiviral activity.
Oxidation of the cysteines to the sulfoxide or sulfone oxidation states
resulted in significant improvements in potency. For example, the
compound derived from N-(methyl-sulfonyl)-2-S-naphthylcysteine sulfone,
17c, was a 3.5 nM inhibitor of HIV protease which inhibited the spread
of virus in MT4 cells with an IC50 = 4.3 nM. Compounds 17c,g,i were
found to be orally bioavailable in a rat model.
DE Amino Acids/METABOLISM Animal Antiviral Agents/CHEMISTRY/*CHEMICAL
SYNTHESIS/METABOLISM/ PHARMACOLOGY Biological Availability
Cysteine/*ANALOGS & DERIVATIVES Drug Design Human HIV
Protease/*METABOLISM HIV Protease Inhibitors/*CHEMICAL
SYNTHESIS/METABOLISM/ PHARMACOLOGY HIV-1/*DRUG EFFECTS/ENZYMOLOGY
Ligands Male Molecular Structure Nuclear Magnetic Resonance Protein
Binding Rats Rats, Sprague-Dawley Spectrum Analysis, Mass
Structure-Activity Relationship Sulfones/CHEMICAL
SYNTHESIS/PHARMACOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).