Temanogrel

Research use only, not for human use.

Temanogrel is a highly selective antagonist of the 5-HT2A receptor (Ki: 4.9 nM).

Temanogrel is a highly selective antagonist of the 5-HT2A receptor (Ki: 4.9 nM). (In Vitro):Temanogrel is a highly selective 5-HT2A receptor antagonist with a Ki of 4.9 nM. Temanogrel inhibits inositol phosphate accumulation with an IC50 of 5.2 nM. Temanogrel exhibits potent inhibition of serotonin mediated amplification of ADP-stimulated human and dog platelet aggregation (IC50=8.7 and 23.1 nM, respectively). Pretreatment of aortic rings with Temanogrel prevents the vasoconstriction caused by 20 μM 5-HT in a concentration-dependent manner. Preincubation with Temanogrel also significantly inhibits the 5-HT-stimulated DNA synthesis with an IC50 of 13±7 nM.(In Vivo):There are no differences in heart rate or mean arterial pressure between saline-treated and Temanogrel-treated groups at any time during the experiment (that is, for mean arterial pressure, P=0.508 between groups, and P=0.540 for group-time interaction). In dogs assigned to receive Temanogrel, plasma Temanogrel levels show a rapid and sustained increase, averaging 25.5±4.1, 28.7±4.6 and 31.2±4.5 ng/mL, respectively, at 10 min, 1.25 h and 2.25 h after the start of treatment.

Temanogrel is a highly selective 5-HT2A receptor antagonist with a Ki of 4.9 nM. Temanogrel inhibits inositol phosphate accumulation with an IC50 of 5.2 nM. Temanogrel exhibits potent inhibition of serotonin mediated amplification of ADP-stimulated human and dog platelet aggregation (IC50=8.7 and 23.1 nM, respectively). Pretreatment of aortic rings with Temanogrel prevents the vasoconstriction caused by 20 μM 5-HT in a concentration-dependent manner. Preincubation with Temanogrel also significantly inhibits the 5-HT-stimulated DNA synthesis with an IC50 of 13±7 nM.

There are no differences in heart rate or mean arterial pressure between saline-treated and Temanogrel-treated groups at any time during the experiment (that is, for mean arterial pressure, P=0.508 between groups, and P=0.540 for group-time interaction). In dogs assigned to receive Temanogrel, plasma Temanogrel levels show a rapid and sustained increase, averaging 25.5±4.1, 28.7±4.6 and 31.2±4.5 ng/mL, respectively, at 10 min, 1.25 h and 2.25 h after the start of treatment.

APD791

Endocrinology/Hormones

5-HT Receptor

5-HT2A

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887936-68-7

436.5

C24H28N4O4

>98% (HPLC)

DMSO:125 mg/mL (286.37 mM; Need ultrasonic)

Cn1nccc1-c(cc(cc1)NC(c2cc(OC)ccc2)=O)c1OCCN1CCOCC1

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(-20℃)

With Ice Pack

≥ 2 years