184576-10-1Relevant articles and documents
Potent dibasic GPIIb/IIIa antagonists with reduced prolongation of bleeding time: Synthesis and pharmacological evaluation of 2-oxopiperazine derivatives
Kitamura,Fukushi,Miyawaki,Kawamura,Konishi,Terashita,Naka
, p. 2438 - 2450 (2007/10/03)
A series of 2-oxopiperazine derivatives, possessing basic moieties at the 3- and the 4-positions, were synthesized and evaluated for their abilities to inhibit platelet aggregation and for their effects on bleeding time. Among the compounds, 2-[(3S)-4-[2-[(4-guanidinobenzoyl)amino] acetyl]3-[3-[(4-guanidinobenzoyl)amino]propyl]-2-oxopiperazinyl]acetic acid (12c) showed a potent inhibitory effect on platelet aggregation and good dissociation between the efficacy and the bleeding side effect. Intravenous infusion of compound 12c at 1.6 μg/mL/min. completely prevented arterial thrombus formation induced by endothelial injury in guinea pigs. The dose of 12c that prolonged the bleeding time to three times the control value was 5.8/μg/mL/min. These results suggest that compound 12c might be useful in the clinical treatment of thrombotic diseases, and we selected 12c (TAK-024) as a candidate for the clinical trials.
Piperazinones, their production and use
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, (2008/06/13)
The present invention provides compounds and medicines effective for prophylaxis and therapy of various diseases by controlling or inhibiting cell-adhesion. Especially, the compounds of this invention perform platelet aggregation action without remarkable
Microcapsule containing amorphous water-soluble 2-piperazinone-1-acetic acid compound
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, (2008/06/13)
A microcapsule contains a pharmaceutically effective amorphous water-soluble 2-piperazinone-1-acetic acid compound or salt thereof and a polymer binder and a method of preparing said microcapsule. The microcapsule is produced by dispersing in an aqueous p
Freeze-dried preparation for pharmaceutical use
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, (2008/06/13)
A freeze-dried preparation comprising a bioactive substance having an optionally substituted amidino group and a disaccharide which stabilizes the bioactive substance; and a process for making the preparation are described.
Disaccharide containing freeze-dried preparation for pharmaceutical use
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, (2008/06/13)
A freeze-dried preparation comprising a bioactive substance having an optionally substituted amidino group and a disaccharide which stabilizes the bioactive substance; and a process for making the preparation are described.