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IHMT-PI3Kδ-372 S-isomer

CAS No.: 2429889-61-0

IHMT-PI3Kδ-372 S-isomer is a potent and selective PI3Kδ inhibitor with an IC50 of 14 nM. IHMT-PI3Kδ-372 S-isomer show
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Description IHMT-PI3Kδ-372 S-isomer is a potent and selective PI3Kδ inhibitor with an IC50 of 14 nM. IHMT-PI3Kδ-372 S-isomer shows high selectivity over other class I PI3Ks (56∼83 fold) and other protein kinases. IHMT-PI3Kδ-372 can be uesd for chronic obstructive pulmonary disease (COPD) research.
In vitro IHMT-PI3Kδ-372 (S)-18 (0.03-3 μM; 1小时; Raji细胞)处理能够抑制Raji细胞中PI3Kδ介导的AKT T308磷酸化,其EC50值为67 nM。IHMT-PI3Kδ-372 (S)-18对CYP2C9表现出中等程度的抑制作用(IC50为2.7 μM),而对CYP1A2、CYP2B6、CYP2C19和CYP3A4则无明显抑制作用(IC50s > 10 μM)[1]。
In vivo IHMT-PI3Kδ-372 (S)-18; 1-5 mg/kg; 吸入; 每日一次; 持续28天),可改善肺功能并减少慢性阻塞性肺疾病(COPD)特有的炎症模式。肺功能参数,如第一秒强制呼气量(FEV1)、强制肺活量(FVC)和峰值呼气流速(PEF),均随剂量增加而改善。包括肺泡巨噬细胞、中性粒细胞和淋巴细胞在内的白细胞异常高水平也有所降低。IHMT-PI3Kδ-372 (S)-18 剂量依赖地减少炎症细胞浸润。在大鼠中,吸入剂量为5 mg/kg 的IHMT-PI3Kδ-372 (S)-18,半衰期为2.3小时,血浆低暴露量为66 ng/mL,高清除率为348.5 mL/min/kg,但在肺组织中吸入6小时后的高暴露量达5599 ng/g。IHMT-PI3Kδ-372 (S)-18 在人类、大鼠和小鼠的肝微粒体中稳定,而在猴和狗的肝微粒体中具有中等稳定性[1]。
molecular weight 503.5
Molecular formula C26H23F2N7O2
CAS 2429889-61-0
Storage Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Solubility DMSO: 50 mg/mL (99.3 mM)
References 1. Li F, et al. Discovery of (S)-2-(1-(4-Amino-3-(3-fluoro-4-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)propyl)-3-cyclopropyl-5-fluoroquinazolin-4(3H)-one (IHMT-PI3Kδ-372) as a Potent and Selective PI3Kδ Inhibitor for the Treatment of Chronic Obstructive Pulmonary Disease. J Med Chem. 2020 Nov 25;63(22):13973-13993.