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1eas

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{{STRUCTURE_1eas| PDB=1eas | SCENE= }}
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'''NONPEPTIDIC INHIBITORS OF HUMAN LEUKOCYTE ELASTASE. 3. DESIGN, SYNTHESIS, X-RAY CRYSTALLOGRAPHIC ANALYSIS, AND STRUCTURE-ACTIVITY RELATIONSHIPS FOR A SERIES OF ORALLY ACTIVE 3-AMINO-6-PHENYLPYRIDIN-2-ONE TRIFLUOROMETHYL KETONES'''
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===NONPEPTIDIC INHIBITORS OF HUMAN LEUKOCYTE ELASTASE. 3. DESIGN, SYNTHESIS, X-RAY CRYSTALLOGRAPHIC ANALYSIS, AND STRUCTURE-ACTIVITY RELATIONSHIPS FOR A SERIES OF ORALLY ACTIVE 3-AMINO-6-PHENYLPYRIDIN-2-ONE TRIFLUOROMETHYL KETONES===
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==Overview==
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A series of nonpeptidic inhibitors of human leukocyte elastase (HLE) is reported. These trifluoromethyl ketone-based inhibitors contain a 3-amino-6-phenylpyridone group as a central template. The effect of varying the N-3 substituent in these inhibitors on in vitro potency, physical properties, and oral activity in a hamster based, HLE-induced lung damage model is described. The variety of substituents at this position that have little effect on in vitro potency supports the idea that this region of the molecule does not interact strongly with the enzyme. One exception to this generality is 13k, which is substituted with a (4-acetamidophenyl)sulfonyl group. This compound has a K(i) of 0.7 nM and is, in vitro, the most potent inhibitor in the series. In contrast, variation of the N-3 substituent was found to have a dramatic effect on activity after oral administration. Several analogs, including the parent amine, 7, formamide, 2u, benzyl sulfamide, 13e, and benzyl sulfonamide, 13f, show significant activity when administered at an oral dose of 2.5 mg/kg. Support for the modeling-based design concepts was obtained through in vitro SAR results and X-ray crystallographic analysis of the complex between 13d and porcine pancreatic elastase (PPE), a closely related enzyme.
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(as it appears on PubMed at http://www.pubmed.gov), where 7932559 is the PubMed ID number.
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{{ABSTRACT_PUBMED_7932559}}
==About this Structure==
==About this Structure==
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[[Category: Sus scrofa]]
[[Category: Sus scrofa]]
[[Category: Ceccarelli, C.]]
[[Category: Ceccarelli, C.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:52:57 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 00:25:28 2008''

Revision as of 21:25, 30 June 2008

Image:1eas.png

Template:STRUCTURE 1eas

NONPEPTIDIC INHIBITORS OF HUMAN LEUKOCYTE ELASTASE. 3. DESIGN, SYNTHESIS, X-RAY CRYSTALLOGRAPHIC ANALYSIS, AND STRUCTURE-ACTIVITY RELATIONSHIPS FOR A SERIES OF ORALLY ACTIVE 3-AMINO-6-PHENYLPYRIDIN-2-ONE TRIFLUOROMETHYL KETONES

Template:ABSTRACT PUBMED 7932559

About this Structure

1EAS is a Single protein structure of sequence from Sus scrofa. Full crystallographic information is available from OCA.

Reference

Nonpeptidic inhibitors of human leukocyte elastase. 3. Design, synthesis, X-ray crystallographic analysis, and structure-activity relationships for a series of orally active 3-amino-6-phenylpyridin-2-one trifluoromethyl ketones., Bernstein PR, Andisik D, Bradley PK, Bryant CB, Ceccarelli C, Damewood JR Jr, Earley R, Edwards PD, Feeney S, Gomes BC, et al., J Med Chem. 1994 Sep 30;37(20):3313-26. PMID:7932559

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