Synthesis of an actinomycin-related peptide, cyclo-(Thr-D-Val-Pro-Sar-MeAla), and conformational studies by nuclear magnetic resonance and x-ray crystallography
Aminoalcohol intermediates for peptide derivatives
申请人:ICI Americas Inc.
公开号:US05194588A1
公开(公告)日:1993-03-16
The invention concerns pharmaceutically useful trifluoromethyl ketone substituted di-, tri- and tetra-peptide derivatives of the formulae Ia, Ib, Ic set out hereinafter, and salts thereof, which are inhibitors of human leukocyte elastase. Also described herein are pharmaceutical compositions containing a peptide derivative and processes and intermediates for use in the manufacture of the peptide derivatives.
Mechanistic alteration in micellar peptide esterolysis reactions
作者:Robert A. Moss、Yoon-Sik Lee
DOI:10.1016/s0040-4039(01)82904-x
日期:1981.1
Buffer or CTACl-catalyzed basic cleavages of Z-D- or L-AA-L-Pro p-nitrophenyl esters proceed mainly via intramolecular cyclization to diketopiperazines. These reactions are more facile with DL than with LL substrates.
Synthesis of an actinomycin-related peptide, cyclo-(Thr-D-Val-Pro-Sar-MeAla), and conformational studies by nuclear magnetic resonance and x-ray crystallography
作者:A. B. Mauger、O. A. Stuart、R. J. Highet、J. V. Silverton
DOI:10.1021/ja00365a032
日期:1982.1
Proline derivatives
申请人:Zeneca Ltd.
公开号:US05686628A1
公开(公告)日:1997-11-11
The present invention relates to particular forms of a novel 1-substituted-N-\x9b2-methyl-1-(trifluoroacetyl)propyl!pyrrolidine-2-carboxam ide which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes pharmaceutical compositions containing such forms, processes for preparing the forms and intermediates useful in the synthesis of the forms.