Journal of Medicinal Chemistry p. 322 - 337 (2017)
Update date:2022-08-24
Topics:
Bhunia, Shome S.
Misra, Ankita
Khan, Imran A.
Gaur, Stuti
Jain, Manish
Singh, Surendra
Saxena, Aaruni
Hohlfield, Thomas
Dikshit, Madhu
Saxena, Anil K.
The development of small molecule inhibitors targeting GPVI has promising therapeutic role, as they inhibit arterial thrombosis with limited risk of bleeding. Among the compounds showing in vivo antithrombotic activity, the most active compound 6b (ED50 = 28.36 μmol/kg po in mice) showed improved inhibition for collagen (IC50 = 6.7 μM), CRP-XL (IC50 = 53.5 μM), and convulxin (CVX) (IC50 = 5.7 μM) mediated platelet aggregation as compared to losartan (LOS) (collagen, IC50 = 10.4 μM; CRP-XL, IC50 = 158 μM; CVX, IC50 = 11 μM) than any of its enantiomers S (6c) (collagen, IC50 = 25.3 μM; CRP-XL, IC50 = 181.4 μM; CVX, IC50 = 9 μM) and R (6d) (collagen, IC50 = 126.3 μM; CRP-XL, IC50 > 500 μM; CVX, IC50 = 86.8 μM). Compound 6b also inhibited platelet P-selectin expression and thus may diminish atherosclerosis. The molecular interactions of both enantiomers 6c and 6d at the GPVI receptor have been explained through docking studies.
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