6-bromo-3-(1-methyl-1H-pyrazol-4-yl)-5-(piperidin-3-yl)pyrazolo[1,5-a]pyrimidin-7-amine | 891495-88-8

• 物质功能分类: 生物化工 - 抑制剂 - 细胞周期(Cell Cycle)
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡唑并嘧啶类
• 英文名称: 6-bromo-3-(1-methyl-1H-pyrazol-4-yl)-5-(piperidin-3-yl)pyrazolo[1,5-a]pyrimidin-7-amine
• 英文别名: 6-bromo-3-(1-methylpyrazol-4-yl)-5-piperidin-3-ylpyrazolo[1,5-a]pyrimidin-7-amine
• CAS: 891495-88-8；891494-63-6
• 化学式: C₁₅H₁₈BrN₇
• 分子量: 376.25
• InChiKey: GMIZZEXBPRLVIV-UHFFFAOYSA-N

物化性质

• 密度：
  1.80
• 溶解度：
  不溶于水；不溶于乙醇； DMSO 中≥18.8 mg/mL

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  23
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  86.1
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335

制备方法与用途

生物活性

MK-8776 (SCH 900776)是一种选择性Chk1抑制剂，IC50为3 nM，比作用于Chk2选择性高50倍。Phase 2。

体外研究

SCH 900776 is not a potent inhibitor of Chk2 and CDK2 with IC50 of 1.5 μM and 0.16 μM, respectively. SCH 900776 shows no significant inhibition of cytochrome P450 human liver microsomal isoforms 1A2, 2C9, 2C19, 2D6, and 3A4. SCH 900776 induces a dose-dependent loss of DNA replication capability 24 hours after hydroxyurea exposure. SCH 900776 enhances the γ-H2AX response of hydroxyurea, 5-fluoruracil, and cytarabine. In combination with an antimetabolite, SCH 900776 induces accumulation of γ-H2AX within 2 hours, indicative of replication fork collapse and double stranded DNA breaks. Additionally, SCH 900776 suppresses accumulation of the Chk1 pS296 autophosphorylation in a dose-dependent manner. Exposure of proliferating WS1 cells to SCH 900776 is associated with rapid, dose-dependent accumulation of Chk1 pS345, indicating that cycling populations of normal cells induce Chk1 pS345 following exposure to SCH 900776 as part of a futile cycle, perhaps driven by AT-family kinases and DNA-PK.

体内研究

Administered 30 minutes after gemcitabine, 4 mg/kg SCH 900776 is sufficient to induce the γ-H2AX biomarker while 8 mg/kg leads to enhanced tumor pharmacodynamic and regression responses relative to gemcitabine or SCH 900776 alone. Dose escalation of SCH 900776 (16 mg/kg and 32 mg/kg) induces incremental improvements in tumor response. Importantly, doses of SCH 900776 associate with robust biomarker activation and improved tumor response are not associated with enhanced toxicity of gemcitabine on hematological parameters in BALB/c mice.

生物活性

MK-8776 (SCH 900776)是一种选择性Chk1抑制剂，无细胞试验中IC50为3 nM，比作用于Chk2选择性高500倍。Phase 2。

靶点

Target	Value
Chk1 (Cell-free assay)	3 nM
CDK2 (Cell-free assay)	0.16 μM

体外研究

SCH 900776是Chk2和CDK2的低效抑制剂，IC50分别为1.5 μM 和 0.16 μM。SCH 900776对细胞色素P450人肝微粒体亚型1A2，2C9，2C19，2D6，和3A4没有显著的抑制作用。羟基脲下暴露24小时后，SCH 900776诱导DNA复制能力剂量依赖性损失。SCH 900776增强γ-H2AX对羟基脲，5-氟尿嘧啶，和阿糖孢苷的响应。与抗代谢物结合，SCH 900776在2小时内诱导γ-H2AX的累积，表明复制叉瓦解，并且双链DNA断裂。此外，SCH 900776以剂量依赖的方式抑制Chk1 pS296自磷酸化的积累。增殖的WS1细胞暴露于SCH 900776，与Chk1 pS345快速的，剂量依赖性聚集相关，表明正常细胞的循环群诱导Chk1 pS345在暴露于SCH 900776后，是一部分无效循环，这也许通过AT-家族激酶和DNA-PK驱动。

体内研究

相对于gemcitabine或SCH 900776单独给药，Gemcitabine给药30分钟后，4 mg/kg SCH 900776足以诱导γ-H2AX生物标志物，而8 mg/kg增强肿瘤药效动力学和退化响应。递增剂量的SCH 900776 (16 mg/kg和32 mg/kg)诱导肿瘤响应持续改进。重要的是，在BALB/c 小鼠体内，SCH 900776的剂量与强的生物标志物活化相关，而提高的肿瘤响应与gemcitabine对血液学指标增强的毒性无关。

文献信息

• [EN] NOVEL MODULATORS OF CELL CYCLE CHECKPOINTS AND THEIR USE IN COMBINATION WITH CHECKPOINT KINASE INHIBITORS<br/>[FR] NOUVEAUX MODULATEURS DE POINTS DE CONTRÔLE DU CYCLE CELLULAIRE ET LEUR UTILISATION EN COMBINAISON AVEC DES INHIBITEURS DE KINASE DE POINT DE CONTRÔLE
  申请人：SCHERING CORP

  公开号：WO2009061781A1

  公开（公告）日：2009-05-14

  In its many embodiments, the present invention provides a novel class of pyrimidine analogs of formula (V) as targeted mechanism-based modulators of cell cycle checkpoints. Cancers and/or malignancies can be treated by administration of a cell cycle checkpoint modulator of the invention. Also discussed are suitable combinations of the cell cycle checkpoint modulator with a checkpoint kinase inhibitor to produce synergistic apoptosis in cancer cells. The invention includes methods of treating cancers by administering the combination of the cell cycle checkpoint modulator and the checkpoint kinase inhibitor, pharmaceutical compositions comprising the activator as well as the combination and pharmaceutical kits.

  在其多种实施方式中，本发明提供了一类新型的嘧啶类似物，其化学式为（V），作为细胞周期检查点的靶向机制调节剂。可以通过给予本发明的细胞周期检查点调节剂来治疗癌症和/或恶性肿瘤。还讨论了适当的细胞周期检查点调节剂与检查点激酶抑制剂的组合，以在癌细胞中产生协同凋亡。该发明包括通过给予细胞周期检查点调节剂和检查点激酶抑制剂的组合来治疗癌症的方法，以及包含激活剂以及该组合的药物组合和药物配套工具。
• Methods for inhibiting protein kinases
  申请人：Guzi J. Timothy

  公开号：US20070082900A1

  公开（公告）日：2007-04-12

  The present invention provides methods for inhibiting protein kinases selected from the group consisting of AKT, Checkpoint kinase, Aurora kinase, Pim kinases, and tyrosine kinase using pyrazolo[1,5-a]pyrimidine compounds and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with protein kinases using such compounds.

  本发明提供了使用吡唑并[1,5-a]嘧啶化合物抑制选自AKT、检查点激酶、极光激酶、Pim激酶和酪氨酸激酶的蛋白激酶的方法，以及使用这些化合物治疗、预防、抑制或改善与蛋白激酶相关的一种或多种疾病的方法。
• [EN] DEGRADERS OF WEE1 KINASE<br/>[FR] AGENTS DE DÉGRADATION DE LA KINASE WEE1
  申请人：DANA FARBER CANCER INST INC

  公开号：WO2020069105A1

  公开（公告）日：2020-04-02

  Disclosed are bifunctional compounds (degraders) that target Wee1 tyrosine kinase for degradation. Also disclosed are pharmaceutical compositions containing the degraders and methods of using the compounds to treat disease.

  披露了一种靶向Wee1酪氨酸激酶进行降解的双功能化合物（降解剂）。还披露了含有这些降解剂的药物组合物以及使用这些化合物治疗疾病的方法。
• [EN] COMPOSITIONS AND METHODS FOR TREATING CANCER<br/>[FR] COMPOSITIONS ET MÉTHODES DE TRAITEMENT DU CANCER
  申请人：MERCK SHARP & DOHME

  公开号：WO2013039854A1

  公开（公告）日：2013-03-21

  The instant invention provides a method of treating a cancer, selected from the group consisting of breast cancer, melanoma, colorectal cancer, non-small cell lung cancer and ovarian cancer, by administering a combination of a WEE1 inhibitor and a CHK1 inhibitor, wherein the WEE1 inhibitor is MK-1775 or a pharmaceutically acceptable salt thereof, or MK-3652 or a pharmaceutically acceptable salt thereof, and the CHK1 inhibitor is MK-8776 or a pharmaceutically acceptable salt thereof, or SCH900444 or a pharmaceutically acceptable salt thereof.

  该瞬时发明提供了一种治疗癌症的方法，所述癌症包括乳腺癌、黑色素瘤、结直肠癌、非小细胞肺癌和卵巢癌，通过给予一种WEE1抑制剂和一种CHK1抑制剂的组合，其中WEE1抑制剂为MK-1775或其药用盐，或MK-3652或其药用盐，CHK1抑制剂为MK-8776或其药用盐，或SCH900444或其药用盐。
• [EN] COMPOSITIONS AND METHODS FOR TREATING CANCER<br/>[FR] COMPOSITIONS ET PROCÉDÉS DE TRAITEMENT DU CANCER
  申请人：MERCK SHARP & DOHME

  公开号：WO2014062454A1

  公开（公告）日：2014-04-24

  The instant invention relates to methods for the treatment of neuroblastoma by administering a combination of a WEE1 inhibitor and a CHK1 inhibitor, wherein the WEE1 inhibitor is WEE1-1 or a pharmaceutically acceptable salt thereof, or WEE1-2 or a pharmaceutically acceptable salt thereof, and the CHK1 inhibitor is CHK1-1 or a pharmaceutically acceptable salt thereof. In another embodiment, the invention relates to a method for treating a neuroblastoma patient, comprising administering a WEE1 inhibitor and a CHK1 inhibitor, wherein the cancer cells of said patient to be treated are characterized by amplified expression levels of MYCN.

  该瞬时发明涉及通过给予一种WEE1抑制剂和一种CHK1抑制剂的组合来治疗神经母细胞瘤的方法，其中WEE1抑制剂是WEE1-1或其药学上可接受的盐，或者是WEE1-2或其药学上可接受的盐，而CHK1抑制剂是CHK1-1或其药学上可接受的盐。在另一实施方案中，该发明涉及一种治疗神经母细胞瘤患者的方法，包括给予WEE1抑制剂和CHK1抑制剂，其中待治疗患者的癌细胞具有MYCN基因表达水平增高的特征。