kynurenic acid

5,7-Dichlorokynurenic acid (5,7-dichlorokynurenic acid sodium) 是一种专门针对于NMDA 受体甘氨酸位点的竞争性拮抗剂(KB:65 nM)。它是犬尿酸的衍生物，可降低大鼠皮质细胞培养物中 NMDA 诱导的神经元损伤程度。

Kynurenic acid (Quinurenic acid) 是一种内源性色氨酸活性代谢物，是一种 NMDA, glutamate, α7 nicotinic acetylcholine receptor 三重拮抗剂，也是 GPR35 CXCR8 激动剂，具有神经保护和抗惊厥特性，可用于研究神经分裂和与代谢相关的疾病。

broad spectrum EAA antagonist

Kynurenic acid, an active metabolite of tryptophan, is synthesized through a kynurenine intermediate by kynurenine aminotransferases (KATs). It acts as an antagonist of both NMDA and AMPA receptors, as well as α7 nicotinic acetylcholine receptors (nAChRs; EC50s = 235, 101, and 7 µM, respectively), and functions as an agonist for the aryl hydrocarbon receptor (AhR) and G protein-coupled receptor 35 (GPR35; EC50s = 1.4 and 39 µM, respectively). In a neonatal rat model of cerebral hypoxic-ischemia, induced by carotid artery ligation, administration of kynurenic acid at 300 mg kg prevents weight loss in the lesioned hemisphere. Additionally, at concentrations of 1 and 5 mg ml, it protects against neurodegeneration in the rhabdomere of the eye in an Htt93QtransgenicDrosophila model of Huntington's disease. Elevated levels of kynurenic acid in the cerebrospinal fluid have been observed in patients with schizophrenia.

7-Chlorokynurenic acid (7-chloro-4-hydroxy-2-carboxyquinoline) 是一种有效的选择性 NMDA 受体拮抗剂，对甘氨酸 B 激动剂位点的 IC50 为 0.56 μM。 7-Chlorokynurenic acid 抑制谷氨酸再摄取到突触小泡中，Ki 为 0.59 μM，并在神经轴输送后显示出镇痛作用。

6-Hydroxykynurenic acid (6-HKA)，作为犬尿酸 (KYNA) 的衍生物，可从银杏叶提取。该化合物是NMDAR的低亲和力拮抗剂，IC50值为59 μM。

Kynurenic Acid-d5 是 Kynurenic Acid 的氘代化合物。Kynurenic Acid 的 CAS 号为 492-27-3。Kynurenic acid 是一种内源性色氨酸代谢物，是针对靶点NMDA、谷氨酸、α7烟碱型乙酰胆碱受体的广谱拮抗剂。它也是GPR35 CXCR8激动剂。

7-Chlorokynurenic acid sodium salt (7-CKA sodium salt) is a potent and selective antagonist of the glycine B coagonist site of the NMDA receptor (IC50: 0.56 μM). It is also a potent inhibitor of the reuptake of glutamate into synaptic vesicles (Ki: 0.59 μ

5,7-Dichlorokynurenic acid sodium salt is a NMDA receptor antagonist.

Xanthurenic Acid (8-Hydroxykynurenic acid) 是通过 3-羟基犬尿氨酸转氨而由色氨酸代谢产生的分子，可激活 mGlu2 3 代谢型谷氨酸受体。在下丘脑的感觉传输过程中，它被认为是Group II 代谢型谷氨酸受体的激动剂。

PF-04859989 HCl 是不可逆的犬尿氨酸转氨酶 KAT II 抑制剂，可透过血脑屏障，抑制 hKATⅡ 和 rKATⅡ 的 IC50分别为 23 和 263 nM。它对 KATⅡ 的选择性高于人 KATⅠ、KATⅢ 和 KATⅣ (IC50分别为22、11和 >50 μM)。

Kynurenine sulfate monohydrate is a precursor of kynurenic acid which is the only recognized endogenous excitatory amino acid receptor antagonist agent in the central nervous system. L-Kyn is known to be a pigment generating component in animals. In mamma

Aminoadipic acid (DL-2-Aminoadipic acid) 是赖氨酸主要生化途径中的代谢物。 它是赖氨酸和糖碱代谢的中间体。 它拮抗由谷氨酸受体 N-甲基-D-天冬氨酸调节的神经兴奋特性。

4-Chlorokynurenine is a prodrug of 7-Cl-kynurenic acid (7-Cl-KYNA), a potent, selective antagonist of the NMDA glycine receptor.