Inhibition of Human Neutrophil Elastase with Peptidyl Electrophilic Ketones. 2. Orally Active PG-Val-Pro-Val Pentafluoroethyl Ketones
摘要:
Valylprolylvalyl pentafluoroethyl ketones with different N-protecting groups were evaluated in vitro and in vivo as inhibitors of human neutrophil elastase (HNE). Several of these compounds were found to be orally active in HNE-induced rat and hamster lung hemorrhage models. The compound with 4-(4-morpholinylcarbonyl)benzoyl as the protecting group, 71 (MDL 101,146), was studied in greater detail. Hydration and epimerization studies were performed on 71 and related compounds in various media, including human blood serum. Highperformance liquid chromatography studies on a reversed-phase system as a measure of the Lipophilicity of 71. and related compounds revealed a small range of relative retention times wherein the orally active compounds fell. The K-i value determined for 71 vs HNE was 25 nM.
Inhibition of Human Neutrophil Elastase. 3. An Orally Active Enol Acetate Prodrug
作者:Joseph P. Burkhart、Jack R. Koehl、Shujaath Mehdi、Sherrie L. Durham、Michael J. Janusz、Edward W. Huber、Michael R. Angelastro、Shyam Sunder、William A. Metz
DOI:10.1021/jm00002a003
日期:1995.1
vitro studies, in the presence of added esterase, and 19F NMR studies, in biological media, indicated that the E-enol acetate derivatives should act as prodrugs in vivo. The ED50 value for (E)-N-[4-(4-morpholinylcarbonyl)benzoyl]-L-valyl-N-[2- (acetyloxy)-3,3,4,4,4-pentafluoro-1-(1-methylethyl)-1-buteny l]-L-prolinamide (20), when administered orally in the hamster lung hemorrhage model, was 9 mg/kg
4-(4-Chlorophenylsulphonylcarbamoyl)benzoyl-L-valyl-L-proline-1-(RS)-(1-trifluoroacetyl-2-methylpropyl)amide for treating haemorrhage associated with acute non-lymphocytic leukaemia
申请人:ZENECA LIMITED
公开号:EP0463811A3
公开(公告)日:1992-04-01
The invention includes a novel therapeutic agent comprising 4-(4-chlorophenylsulphonylcarbamoyl)benzoyl-L-valyl-L-proline 1(RS)-(1-trifluoroacetyl-2methylpropyl)amide for use in the prevention or treatment of haemorrhagic conditions associated with acute non-lymphocytic leukaemia or its therapy, the use of this peptide derivative in the manufacture of a medicament for the prevention or treatment of said haemorrhagic conditions, as well as a method of prevention or treatment of said haemorrhagic conditions, as well as a method of prevention or treatment of said haemorrhagic conditions using the peptide derivative.
MEYER, JOHN C.;SPREEN, RUSSELL C.;HALL, JAMES E., J. CHROMATOGR., 522,(1990) C. 213-226
作者:MEYER, JOHN C.、SPREEN, RUSSELL C.、HALL, JAMES E.
DOI:——
日期:——
Therapeutic agent for treatment and prevention of adult respiratory distress syndrome
申请人:ZENECA LIMITED
公开号:EP0458536B1
公开(公告)日:1998-03-18
USE OF 4-(4-CHLOROPHENYL-SULPHONYLCARBAMOYL) BENZOYL-L-VALYL-L-PROLINE 1($i(RS))-(1-TRIFLUOROACETYL-2-METHYLPROPYL) AMIDE IN THE TREATMENT OF VASCULAR DISEASES