Lead Optimization of Ethyl 6-Aminonicotinate Acyl Sulfonamides as Antagonists of the P2Y12 Receptor. Separation of the Antithrombotic Effect and Bleeding for Candidate Drug AZD1283
摘要:
Synthesis and structure-activity relationships of ethyl 6-aminonicotinate acyl sulfonamides, which are potent antagonists of the P2Y(12) receptor, are presented. Shifting from 5-chlorothienyl to benzyl sulfonamides significantly increased the potency in the residual platelet count assay. Evaluation of PK parameters in vivo in dog for six compounds showed a 10-fold higher clearance for the azetidines than for the matched-pair piperidines. In a modified Folts model in dog, both piperidine 3 and azetidine 13 dose-dependently induced increases in blood flow and inhibition of ADP-induced platelet aggregation with antithrombotic ED50 values of 3.0 and 10 mu g/kg/min, respectively. The doses that induced a larger than 3-fold increase in bleeding time were 33 and 100 mu g/kg/min for 3 and 13, respectively. Thus, the therapeutic index (TI) was >= 10 for both compounds. On the basis of these data, compound 3 was progressed into human clinical trials as candidate drug AZD1283.
The present invention relates to certain new pyridin analogues of Formula (I)
to processes for preparing such compounds, to their utility as P2Y
12
inhibitors and as anti-trombotic agents etc, their use as medicaments in cardiovascular diseases as well as pharmaceutical compositions containing them.
The present invention relates to a fused heterocyclic compound having the Formula 1, which is useful as a platelet aggregation inhibitor, a method for preparing the same, and a pharmaceutical composition for inhibiting platelet aggregation comprising the same.
[EN] 2-AMINO-6-ALKYL SUBSTITUTED PYRIDINE DERIVATIVES USEFUL AS P2Y12 INHIBITORS 308<br/>[FR] DÉRIVÉS DE PYRIDINE SUBSTITUÉS PAR 2-AMINO-6-ALKYLE UTILES COMME INHIBITEURS DE P2Y12
申请人:ASTRAZENECA AB
公开号:WO2010005385A1
公开(公告)日:2010-01-14
The present invention relates to certain new pyridin analogues of Formula ( I ) to processes for preparing such compounds, to their utility as P2Y12 inhibitors and as anti-trombotic agents etc, their use as medicaments in cardiovascular diseases as well as pharmaceutical compositions containing them.
The present invention relates to certain new pyridin analogues of Formula (I)
to processes for preparing such compounds, to their utility as P2Y
12
inhibitors and as anti-trombotic agents etc, their use as medicaments in cardiovascular diseases as well as pharmaceutical compositions containing them.
Optimization of P2Y<sub>12</sub> Antagonist Ethyl 6-(4-((Benzylsulfonyl)carbamoyl)piperidin-1-yl)-5-cyano-2-methylnicotinate (AZD1283) Led to the Discovery of an Oral Antiplatelet Agent with Improved Druglike Properties
AZD1283, a series of novel bicyclic pyridine derivatives were designed and synthesized. The cyclization of the ester substituent on the pyridine ring to the ortho-methyl group led to lactone analogues of AZD1283 that showed significantly enhancedmetabolicstability in subsequent structure-pharmacokinetic relationship studies. The metabolicstability was further enhanced by adding a 4-methyl substituent