Novel Nonpeptide CCK-B Antagonists: Design and Development of Quinazolinone Derivatives as Potent, Selective, and Orally Active CCK-B Antagonists
作者:Janak K. Padia、Mark Field、Joanna Hinton、Ken Meecham、Julius Pablo、Rob Pinnock、Bruce D. Roth、Lakhbir Singh、Nirmala Suman-Chauhan、Bharat K. Trivedi、Louise Webdale
DOI:10.1021/jm970373j
日期:1998.3.1
We have designed a novel series of CCK-B receptor antagonists by combining key pharmacophores, an arylurea moiety of 1 and a quinazolinone ring of 3, from two known series. Our earlier studies showed that compounds with methylene linkers in our "target" produced moderate binding affinity and selectivity for CCK-B receptors, whereas its higher and lower homologues resulted in loss of affinity. Introduction of -NH- as a linker dramatically enhanced binding affinity and selectivity for CCK-B receptors, thus providing several compounds with single-digit nanomolar binding affinity and excellent selectivity. Analogous to the earlier studies of the series of quinazolinone derivatives 3, we also found 3-isopropoxyphenyl as a preferred substitution on the N-3 quinazolinone. Electron-withdrawing substitutions on the urea terminal phenyl ring enhanced the CCK-B potency. Representative compounds of this series were tested in the functional assay and showed pure antagonist profiles. Compounds 51 and 61 were orally active in the elevated rat X-maze test. These compounds were also evaluated for their pharmacokinetic profile. The absolute oral bioavailability of compound 61 was 22% in rats.
SELEKTIVE ARYLGUANIDINPEPTIDE ALS UROKINASEINHIBITOREN
申请人:Wilex AG
公开号:EP1453852B1
公开(公告)日:2007-01-17
Selective urokinase inhibitors
申请人:Wilex AG
公开号:US20040266766A1
公开(公告)日:2004-12-30
The present invention concerns new selective inhibitors of the urokinase plasminogen activator (uPA, EC 3.4.21.31) and their use as therapeutic agents for treating urokinase-associated diseases such as malignant tumors and the formation of metastases.
US6897213B1
申请人:——
公开号:US6897213B1
公开(公告)日:2005-05-24
[EN] NOVEL HETEROCYCLES AS CHOLECYSTOKININ (CCK) LIGANDS<br/>[FR] NOUVEAUX HETEROCYCLES UTILISES COMME LIGANDS DE LA CHOLECYSTOKININE (CCK)
申请人:WARNER-LAMBERT COMPANY
公开号:WO1996020178A1
公开(公告)日:1996-07-04
(EN) Novel quinazolinone derivatives with good binding affinity for the CCK-A and CCK-B receptors, pharmaceutical compositions containing them and methods of using them are taught. The compounds are useful agents to suppress appetite, reduce gastric acid secretion, and the like.(FR) La présente invention concerne de nouveaux dérivés de quinazolinone qui présentent une bonne affinité de liaison avec les récepteurs CCK-A et CCK-B; elle concerne également des compositions pharmaceutiques qui contiennent ces dérivés ainsi que des procédés d'utilisation. Ces composés s'avèrent efficaces pour modérer l'appétit, réduire l'acidité gastrique et dans des situations similaires.