DSM502
目录号 : GC63533
DSM502 是一种基于吡咯的二氢乳清酸脱氢酶 (DHODH) 抑制剂。DSM502 对 Plasmodium DHODH 和 Plasmodium 寄生虫表现出纳摩尔级效力，对哺乳动物 DHODH 没有抑制作用。
Cas No.:2426616-55-7
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
DSM502 is a pyrrole-based Dihydroorotate Dehydrogenase (DHODH) inhibitor. DSM502 exhibits nanomolar potency againsts Plasmodium DHODH and Plasmodium parasites, with no inhibition of mammalian DHODHs[1].
DSM502 shows inhibitory activity against P. falciparum DHODH (PfDHODH, IC50=20 nM), P. vivax DHODH (PvDHODH, IC50=14 nM) and Pf3D7 cells (EC50=14 nM), with no inhibition of the human enzyme[1].
DSM502 (10 and 50 mg/kg; p.o. once daily for 4 days) results in 97% parasite clearance in confirmatory SCID study compared to 85% clearance in the GSK study[1].DSM502 (18.3 and 50 mg/kg; a single p.o.) exhibits high oral bioavailability (>100%, >100%), apparent t1/2 (2.6, 3.6 h) and Cmax (8.4, 42.3 μM) in mice[1].DSM502 (2.8 mg/kg; a single i.v.) exhibits apparent t1/2 (2.8 h), plasma clearance (26.1 mL/min/kg), and Vss (1.2 L/kg) in mice[1].
[1]. Kokkonda S, et, al. Lead Optimization of a Pyrrole-Based Dihydroorotate Dehydrogenase Inhibitor Series for the Treatment of Malaria. J Med Chem. 2020 May 14;63(9):4929-4956.
[2]. Palmer MJ, et, al. Potent Antimalarials with Development Potential Identified by Structure-Guided Computational Optimization of a Pyrrole-Based Dihydroorotate Dehydrogenase Inhibitor Series. J Med Chem. 2021 May 13;64(9):6085-6136.
| Cas No. | 2426616-55-7 | SDF | |
| 分子式 | C16H16F3N3O | 分子量 | 323.31 |
| 溶解度 | DMSO : 250 mg/mL (773.25 mM; Need ultrasonic) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 3.093 mL | 15.465 mL | 30.9301 mL |
| 5 mM | 0.6186 mL | 3.093 mL | 6.186 mL |
| 10 mM | 0.3093 mL | 1.5465 mL | 3.093 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
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，
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 saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Lead Optimization of a Pyrrole-Based Dihydroorotate Dehydrogenase Inhibitor Series for the Treatment of Malaria
J Med Chem 2020 May 14;63(9):4929-4956.PMID:32248693DOI:PMC7394244
Malaria puts at risk nearly half the world's population and causes high mortality in sub-Saharan Africa, while drug resistance threatens current therapies. The pyrimidine biosynthetic enzyme dihydroorotate dehydrogenase (DHODH) is a validated target for malaria treatment based on our finding that triazolopyrimidine DSM265 (1) showed efficacy in clinical studies. Herein, we describe optimization of a pyrrole-based series identified using a target-based DHODH screen. Compounds with nanomolar potency versus Plasmodium DHODH and Plasmodium parasites were identified with good pharmacological properties. X-ray studies showed that the pyrroles bind an alternative enzyme conformation from 1 leading to improved species selectivity versus mammalian enzymes and equivalent activity on Plasmodium falciparum and Plasmodium vivax DHODH. The best lead DSM502 (37) showed in vivo efficacy at similar levels of blood exposure to 1, although metabolic stability was reduced. Overall, the pyrrole-based DHODH inhibitors provide an attractive alternative scaffold for the development of new antimalarial compounds.