- A new strategy for the development of highly potent and selective plasmin inhibitors
-
A new structure-based strategy for the design of potent and selective plasmin inhibitors was developed. These compounds could be prepared by cyclizations between the P3 and P2 amino acid residues of substrate-analogue inhibitors using metathesis or a copper-catalyzed azide alkyne cycloaddition in combination with standard peptide couplings. The most potent bis-triazole derivative 10 inhibits plasmin and plasma kallikrein with Ki of 0.77 and 2.4 nM, respectively, whereas it has poor activity against the related trypsin-like serine proteases thrombin, factor Xa, or activated protein C. Modeling experiments revealed that inhibitor 10 adopts a compact and rigid structure that fits well into the relatively open active site of plasmin and plasma kallikrein, while it is rejected from sterically demanding residues present in loops of the other enzymes. These results from modeling confirm the selectivity profile found for inhibitor 10 in enzyme kinetic studies. Such compounds might be useful lead structures for the development of new antifibrinolytic drugs for use in cardiac surgery with cardiopulmonary bypass or organ transplantations to reduce bleeding complications.
- Saupe, Sebastian M.,Steinmetzer, Torsten
-
supporting information; experimental part
p. 1171 - 1180
(2012/04/17)
-
- SERINE PROTEASE INHIBITORS
-
The invention provides methods of making and using compounds of the formula shown, which are inhibitors of human plasmin and plasma kallikrein. (Formula I) The compounds are useful for the prevention of blood loss, and as components of fibrin adhesives.
- -
-
Page/Page column 32
(2012/02/01)
-
- Discovery of pyrrolopyrimidine inhibitors of Akt
-
The discovery and optimization of a series of pyrrolopyrimidine based protein kinase B (Pkb/Akt) inhibitors discovered via HTS and structure based drug design is reported. The compounds demonstrate potent inhibition of all three Akt isoforms and knockdown of phospho-PRAS40 levels in LNCaP cells and tumor xenografts.
- Blake, James F.,Kallan, Nicholas C.,Xiao, Dengming,Xu, Rui,Bencsik, Josef R.,Skelton, Nicholas J.,Spencer, Keith L.,Mitchell, Ian S.,Woessner, Richard D.,Gloor, Susan L.,Risom, Tyler,Gross, Stefan D.,Martinson, Matthew,Morales, Tony H.,Vigers, Guy P.A.,Brandhuber, Barbara J.
-
scheme or table
p. 5607 - 5612
(2010/11/17)
-
- UREA DERIVATIVE, PROCESS FOR PRODUCING THE SAME, AND USE
-
The present invention provides a urea derivative or a salt thereof, which is useful as a therapeutic agent for thrombosis. The derivative is represented by Formula (I): [Chemical formula I] wherein Cy is an aromatic hydrocarbon group which may be substituted or an aromatic heterocyclic group which may be substituted; R1 is a hydrogen atom or a hydrocarbon group which may be substituted; V is -C(O)-, -S(O)-, or -S(O)2-; W is -N(R2)-, -O-, or a bond (wherein R2 is a hydrogen atom or a hydrocarbon group which may be substituted); X is alkylene which may be substituted; Y is -C(O)-, -S(O)-, or -S(O)2-; Z is a bond, a chain hydrocarbon group which may be substituted, or -N=; ring A is a non-aromatic nitrogen-containing heterocyclic ring which may be substituted; ring B is a nitrogen-containing heterocyclic ring which may be substituted; and [Chemical formula 2]------￣?,?------? are each independently a single bond or a double bond; provided that R1 may be bonded to R2 to form a non-aromatic nitrogen-containing heterocyclic ring and that R2 may be bonded to a substituent of X to form a non-aromatic nitrogen-containing heterocyclic ring which may be substituted.
- -
-
Page/Page column 64
(2010/11/23)
-
