| 规格 | 价格 | 库存 | 数量 |
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| 25mg |
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| 靶点 |
BRD4 (pIC50 = 5.1)
BET family bromodomains (BRD2, BRD3, BRD4)[1] |
|---|---|
| 体外研究 (In Vitro) |
I-BET762 羧酸(Molibresib 羧酸)(化合物 27)可阻断外周血单核细胞 (PBMC),pIC50 小于 4 [1]。
I-BET762 在 LPS 刺激的人外周血单个核细胞(PBMC)中抑制 IL-6 的产生,其前体化合物 7 的 pIC₅₀ 为 6.8,而化合物 1(即 I-BET762)的 pIC₅₀ 为 6.5。[1] I-BET762 具有高被动渗透性(167 nm/秒)和良好的生理相关介质溶解度(在模拟胃液、空腹模拟肠液和餐后模拟肠液中均 >3 mg/mL)。[1] I-BET762 对主要人 CYP 同工酶(CYP1A2、2C9、2C19、2D6、3A4;IC₅₀ ≥ 33 μM)无显著抑制,且对 CYP2D6 或 CYP3A4 无时间依赖性抑制。[1] I-BET762 在人肝微粒体和肝细胞中表现出低体外清除率(CLᵢ ≤ 1.7 mL/min/g 肝脏)。[1] I-BET762 在 Ames 试验中(无论是否添加 S9 混合物)均无致突变性。[1] I-BET762 在包含 38 项安全性相关实验的 panel 中未显示明显活性(pIC₅₀/pEC₅₀ ≤ 4.8),在外部 50 项选择性实验 panel 中也无显著抑制(在 10 μM 浓度下抑制率 <30%)。[1] I-BET762 不与其他含溴结构域的蛋白(BAZ2B、SP140、ATAD2、CREBBP、PCAF)相互作用。[1] |
| 体内研究 (In Vivo) |
I-BET762 在一系列肿瘤和免疫炎症模型中显示出疗效。[1]
在大鼠迟发型超敏反应(DTH)模型中,I-BET762 剂量依赖性地抑制 KLH 攻击后 24 小时的耳肿胀,效果与阳性对照雷帕霉素相当。[1] |
| 酶活实验 |
使用荧光偏振(FP)实验测量苯二氮䓬类化合物与 BET 溴结构域(BRD2、BRD3、BRD4)的结合亲和力。该实验跟踪 HepG2 细胞中 ApoA1 的上调,与 BET 蛋白的体外结合具有良好的相关性。[1]
前体化合物 7 在 FP 实验中对 BRD2、BRD3 和 BRD4 的 pIC₅₀ 值分别为 5.9、6.2 和 6.3。[1] I-BET762(化合物 1)在 FP 实验中对 BRD4 的 pIC₅₀ 为 6.2。[1] |
| 细胞实验 |
ApoA1 上调实验:使用含有 ApoA1 荧光素酶报告基因的稳定人 HepG2 肝细胞系筛选能上调 ApoA1 表达的化合物。化合物 7 的 EC₁₇₀ 为 0.22 μM。[1]
PBMC 中 IL-6 抑制实验:用 LPS 刺激外周血单个核细胞,测量 IL-6 的产生以评估化合物的抗炎活性。[1] GABA 受体结合实验:测试化合物抑制地西泮与中枢 GABA 受体结合的能力,以评估其对 CNS 靶点的选择性。[1] |
| 动物实验 |
Pharmacokinetic studies were conducted in mouse, rat, dog, and primate. I-BET762 was administered intravenously as a 1-hour infusion in DMSO/Kleptose HPB/saline vehicle, and orally as a suspension in methylcellulose or HPMC/TWEEN80.[1]
In the rat delayed-type hypersensitivity model, I-BET762 was administered to evaluate its effect on ear swelling after KLH challenge. Results were analyzed by ANOVA followed by Tukey's post-hoc test.[1] |
| 药代性质 (ADME/PK) |
I-BET762 exhibits high passive permeability (167 nm/sec) and good solubility in physiologically relevant media (>3 mg/mL) [1]. The free fraction (fᵤ) in blood is approximately 0.2 in different species [1]. In vitro metabolic stability is low in both hepatic microsomes and hepatocytes in different species (including humans) [1]. In vivo blood clearance is low in dogs and primates (≤30% hepatic blood flow) and moderate in mice and rats (≤70% hepatic blood flow) [1]. Volume of distribution is moderate in rats, dogs, and primates (~1.8 L/kg), but high in mice (~6.5 L/kg) [1]. Terminal half-life is short in rats (~0.5 h) and long in mice, dogs, and primates (~1.5–5.9 h) [1].
Oral bioavailability was moderate (~27%) in rats and high (44–61%) in mice, dogs, and primates. [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
I-BET762 showed no mutagenicity in the Ames assay, with or without the addition of the S9 mixture. [1]
No significant activity was observed in 38 safety-related assays (pIC₅₀/pEC₅₀ ≤ 4.8) or 50 selectivity assays (inhibition rate <30% at 10 μM). [1] No significant inhibitory effect on major human CYP isoenzymes was observed. [1] |
| 参考文献 | |
| 其他信息 |
The bromine domain and additional C-terminal domain (BET) family are involved in the binding of histone epigenetic markers, more specifically, the binding of acetylated lysine residues. This article describes the discovery of potent benzodiazepine inhibitors and their structure-activity relationship (SAR) that disrupt the function of the bromine domains (BRD2, BRD3, and BRD4) of the BET family. This study yielded a highly potent and selective compound, I-BET762, which is currently undergoing Phase I/II clinical trials for nucleoprotein (NUT) midline carcinoma and other cancers. [1]
I-BET762 is a highly potent and selective small molecule BET bromine domain inhibitor that is currently undergoing clinical development for NUT midline carcinoma and other cancers. [1] This compound was optimized through a structure-activity relationship study of a benzodiazepine lead compound (compound 7) to improve its potency, selectivity, and acid stability. [1] X-ray crystallography analysis showed that the binding mechanism of I-BET762 to BRD4 was similar to that of acetylated lysine, in which water-bridge interactions replaced the direct hydrogen bonds observed in earlier compounds. [1] |
| 分子式 |
C20H17CLN4O3
|
|---|---|
| 分子量 |
396.826983213425
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| 精确质量 |
396.098
|
| CAS号 |
1300019-38-8
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| 相关CAS号 |
Molibresib;1260907-17-2
|
| PubChem CID |
67173666
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| 外观&性状 |
Typically exists as Light yellow to yellow solids at room temperature
|
| LogP |
1.6
|
| tPSA |
89.6Ų
|
| 氢键供体(HBD)数目 |
1
|
| 氢键受体(HBA)数目 |
6
|
| 可旋转键数目(RBC) |
4
|
| 重原子数目 |
28
|
| 分子复杂度/Complexity |
610
|
| 定义原子立体中心数目 |
1
|
| SMILES |
CC1=NN=C2N1C3=C(C=C(C=C3)OC)C(=N[C@H]2CC(=O)O)C4=CC=C(C=C4)Cl
|
| InChi Key |
VEIZLTSJCDOIBH-INIZCTEOSA-N
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| InChi Code |
InChI=1S/C20H17ClN4O3/c1-11-23-24-20-16(10-18(26)27)22-19(12-3-5-13(21)6-4-12)15-9-14(28-2)7-8-17(15)25(11)20/h3-9,16H,10H2,1-2H3,(H,26,27)/t16-/m0/s1
|
| 化学名 |
2-[(4S)-6-(4-chlorophenyl)-8-methoxy-1-methyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin-4-yl]acetic acid
|
| 别名 |
I-BET762 carboxylic acid; 1300019-38-8; Target Protein-binding moiety 4; CHEMBL2430881; (S)-2-(6-(4-chlorophenyl)-8-methoxy-1-methyl-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepin-4-yl)acetic acid; 2-[(4S)-6-(4-chlorophenyl)-8-methoxy-1-methyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin-4-yl]acetic acid; Molibresib carboxylic acid; SCHEMBL1820357;
|
| HS Tariff Code |
2934.99.9001
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| 存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| 运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| 溶解度 (体外实验) |
DMSO : ~7.14 mg/mL (~17.99 mM)
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|---|---|
| 溶解度 (体内实验) |
注意: 如下所列的是一些常用的体内动物实验溶解配方,主要用于溶解难溶或不溶于水的产品(水溶度<1 mg/mL)。 建议您先取少量样品进行尝试,如该配方可行,再根据实验需求增加样品量。
注射用配方
注射用配方1: DMSO : Tween 80: Saline = 10 : 5 : 85 (如: 100 μL DMSO → 50 μL Tween 80 → 850 μL Saline)(IP/IV/IM/SC等) *生理盐水/Saline的制备:将0.9g氯化钠/NaCl溶解在100 mL ddH ₂ O中,得到澄清溶液。 注射用配方 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (如: 100 μL DMSO → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline) 注射用配方 3: DMSO : Corn oil = 10 : 90 (如: 100 μL DMSO → 900 μL Corn oil) 示例: 以注射用配方 3 (DMSO : Corn oil = 10 : 90) 为例说明, 如果要配制 1 mL 2.5 mg/mL的工作液, 您可以取 100 μL 25 mg/mL 澄清的 DMSO 储备液,加到 900 μL Corn oil/玉米油中, 混合均匀。 View More
注射用配方 4: DMSO : 20% SBE-β-CD in Saline = 10 : 90 [如:100 μL DMSO → 900 μL (20% SBE-β-CD in Saline)] 口服配方
口服配方 1: 悬浮于0.5% CMC Na (羧甲基纤维素钠) 口服配方 2: 悬浮于0.5% Carboxymethyl cellulose (羧甲基纤维素) 示例: 以口服配方 1 (悬浮于 0.5% CMC Na)为例说明, 如果要配制 100 mL 2.5 mg/mL 的工作液, 您可以先取0.5g CMC Na并将其溶解于100mL ddH2O中,得到0.5%CMC-Na澄清溶液;然后将250 mg待测化合物加到100 mL前述 0.5%CMC Na溶液中,得到悬浮液。 View More
口服配方 3: 溶解于 PEG400 (聚乙二醇400) 请根据您的实验动物和给药方式选择适当的溶解配方/方案: 1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液)); 2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方): 10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline); 假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL; 3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例; 4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶; 5、为保证最佳实验结果,工作液请现配现用! 6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们; 7、 以上所有助溶剂都可在 Invivochem.cn网站购买。 |
| 制备储备液 | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.5200 mL | 12.5999 mL | 25.1997 mL | |
| 5 mM | 0.5040 mL | 2.5200 mL | 5.0399 mL | |
| 10 mM | 0.2520 mL | 1.2600 mL | 2.5200 mL |
1、根据实验需要选择合适的溶剂配制储备液 (母液):对于大多数产品,InvivoChem推荐用DMSO配置母液 (比如:5、10、20mM或者10、20、50 mg/mL浓度),个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;
2、如果您找不到您想要的溶解度信息,或者很难将产品溶解在溶液中,请联系我们;
3、建议使用下列计算器进行相关计算(摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等);
4、母液配好之后,将其分装到常规用量,并储存在-20°C或-80°C,尽量减少反复冻融循环。
计算结果:
工作液浓度: mg/mL;
DMSO母液配制方法: mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。
体内配方配制方法:取 μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL ddH2O,混匀澄清。
(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
(2) 一定要按顺序加入溶剂 (助溶剂) 。