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首页> 外文期刊>Journal of Medicinal Chemistry >4-(1,3-Dimethoxyprop-2-ylamino)-2,7-dimethyl-8-(2, 4-dichlorophenyl)pyrazolo(1,5-a)-1,3,5-triazine: a potent, orally bioavailable CRF(1) receptor antagonist.
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4-(1,3-Dimethoxyprop-2-ylamino)-2,7-dimethyl-8-(2, 4-dichlorophenyl)pyrazolo(1,5-a)-1,3,5-triazine: a potent, orally bioavailable CRF(1) receptor antagonist.

机译:4-(1,3-二甲氧基丙-2-基氨基)-2,7-二甲基-8-(2,4-二氯苯基)吡唑并(1,5-a)-1,3,5-三嗪:口服有效可生物利用的CRF(1)受体拮抗剂。

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摘要

Structure-activity studies in the pyrazolo[1,5-a]-1,3,5-triazine series led to the discovery that compound 11i (DMP696) is a potent hCRF(1) receptor antagonist (K(i) = 1.7 nM vs 7.5 nM for alpha-hel-CRF(9-41), hCRF(1) adenylate cyclase IC(50) = 82 nM vs 286 nM for alpha-hel-CRF(9-41)). Compound 11i has excellent oral pharmacokinetic profiles in rats and dogs (37% and 50% oral bioavailabilities, respectively). This compound displays good activity in the rat situational anxiety model (MED = 3 mg/kg (po)), whereas a literature standard 1 (CP154526-1) was inactive (MED > 30 mg/kg (po)). Analogue 11i reduced stereotypical mouth movements in rhesus monkeys by 50% at 21 mg/kg (po) using the human intruder paradigm. Overall, the profile of pyrazolotriazine 11i indicates that hCRF(1) receptor antagonists may be anxiolytic agents, which have reduced motor side effect profiles.
机译:吡唑并[1,5-a] -1,3,5-三嗪系列的结构活性研究导致发现化合物11i(DMP696)是有效的hCRF(1)受体拮抗剂(K(i)= 1.7 nM相对于alpha-hel-CRF(9-41)为7.5 nM,hCRF(1)腺苷酸环化酶IC(50)= 82 nM,而alpha-hel-CRF(9-41)为286 nM)。化合物11i在大鼠和狗中具有出色的口服药代动力学特征(口服生物利用度分别为37%和50%)。该化合物在大鼠情境焦虑模型中表现出良好的活性(MED = 3 mg / kg(po)),而文献标准1(CP154526-1)没有活性(MED> 30 mg / kg(po))。使用人类入侵者模式,类似物11i在21 mg / kg(po)下将恒河猴的定型嘴部运动降低了50%。总体而言,吡唑并三嗪11i的轮廓表明hCRF(1)受体拮抗剂可能是抗焦虑药,其运动副作用有所降低。

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