Article (Scientific journals)
Synthesis and evaluation of N1/C4-substituted beta-lactams as PPE and HLE inhibitors
Gérard, Stéphane; Galleni, Moreno; Dive, Georges et al.
2004In Bioorganic and Medicinal Chemistry, 12 (1), p. 129-138
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Keywords :
beta-lactam; serine-protease inhibition; elastase; N-acylation; N-thioacylation
Abstract :
[en] 4-(Alkylamino)carbonyl-1-(alkoxy)carbonyl-2-azetidinones (9-11) have been prepared in five steps from 4-(benzyloxy)carbonyl-1-(t-butyidimethyl)silyl-2-azetidinone (1). The P-lactam reactivity of 9 has been established by H-1 NMR experiment. Compound 11 was a good reversible inhibitor of PPE and HLE. Based on theoretical design, series of 2-azetidinones (12-17) and 4(alkoxy)carbonyl-2-azetidinones (18-21) bearing various carbonyl (ester, thiolester, amide) and thiocarbonyl (thioamide) functionalities at position N1 were similarly prepared. In the absence of C4-substituent, the compounds were inactive against elastases. On the other hand, 4-(benzyloxy)carbonyl-1-(ethylthioxy)carbonyl-2-azetidinone (19) and 4-(benzyloxy)carbonyl-1-(benzylamino)-thiocarbonyl-2-azetidinone (21) were both good reversible inhibitors, but acting most probably via different mechanisms (enzymic processing of the exocyclic ester function or beta-lactam ring opening). (C) 2003 Elsevier Ltd. All rights reserved.
Disciplines :
Pharmacy, pharmacology & toxicology
Chemistry
Biochemistry, biophysics & molecular biology
Author, co-author :
Gérard, Stéphane
Galleni, Moreno 
Dive, Georges ;  Université de Liège - ULiège > Centre d'ingénierie des protéines
Marchand-Brynaert, Jacqueline
Language :
English
Title :
Synthesis and evaluation of N1/C4-substituted beta-lactams as PPE and HLE inhibitors
Publication date :
02 January 2004
Journal title :
Bioorganic and Medicinal Chemistry
ISSN :
0968-0896
eISSN :
1464-3391
Publisher :
Pergamon-Elsevier Science Ltd, Oxford, United Kingdom
Volume :
12
Issue :
1
Pages :
129-138
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 November 2009

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