validation

Methyl Nonadecanoate (Nonadecanoic Acid methyl ester)是一种内标物，能够用于生物柴油中脂肪酸甲酯含量的测定。

FKBP12 PROTAC dTAG-13是一种PROTAC和选择性降解剂，通过接合FKBP12 F36V和CRBN从而降解 FKBP12 F36V，可用于药物发现过程中的靶标验证。

Desmethyl ranolazine is a metabolite of the antianginal agent ranolazine .1It is formed from ranolazine by the cytochrome P450 (CYP) isoform CYP3A. 1.Wang, Y., Chen, X., Sun, Z., et al.Development and validation of a sensitive LC-MS/MS assay for simultaneous quantitation of ranolazine and its three metabolites in human plasmaJ. Chromatogr. B889-89010-16(2012)

Palonosetron N-oxide is a metabolite of the serotonin (5-HT) receptor subtype 5-HT3antagonist palonosetron .1It is also a potential impurity in palonosetron preparations.2Palonosetron N-oxide is a degradation product formed by exposure to oxidative stress. 1.Stoltz, R.A., Cyong, J.-C., Shah, A., et al.Pharmacokinetic and safety evaluation of palonosetron, a 5-hydroxytryptamine-3 receptor antagonist, in U.S. and Japanese healthy subjectsJ. Clin. Pharmacol.44(5)520-531(2004) 2.Vishnu Murthy, M., Srinivas, K., Kumar, R., et al.Development and validation of a stability-indicating LC method for determining palonosetron hydrochloride, its related compounds and degradation products using naphthalethyl stationary phaseJ. Pharm. Biomed. Anal.56(2)429-435(2011)

5,6-dimethyl-2-Thiouracil is a heterocyclic building block that has been used in the synthesis of anti-HIV-1 pyrimidinones.1 It has also been used as an internal standard for the quantification of thyreostats, including 2-thiouracil, in bovine plasma.2 |1. Navrotskii, M.B. Synthesis and anti-HIV-1 activity of new 2-[(2-phthalimidoethyl)thio]-4(3H)-pyrimidinone derivatives. Pharm. Chem. J. 39(9), 466-467 (2005).|2. Schmidt, K.S. In-house validation and factorial effect analysis of a liquid chromatography-tandem mass spectrometry method for the determination of thyreostats in bovine blood plasma. Anal. Bioanal. Chem. 406(3), 735-743 (2014).

O-desmethyl Brinzolamide is an active metabolite of the carbonic anhydrase (CA) inhibitor brinzolamide .1,2It inhibits CAII and CAIV (IC50s = 0.136 and 165 nM, respectively).1 1.Huang, Q., Rui, E.Y., Cobbs, M., et al.Design, synthesis, and evaluation of NO-donor containing carbonic anhydrase inhibitors to lower intraocular pressureJ. Med. Chem.58(6)2821-2833(2015) 2.Lo Faro, A.F., Tini, A., Gottardi, M., et al.Development and validation of a fast ultra-high-performance liquid chromatography tandem mass spectrometry method for determining carbonic anhydrase inhibitors and their metabolites in urine and hairDrug Test Anal.13(8)1552-1560(2021)

CAY10781 是一种神经纤毛蛋白-1 (NRP-1) 和 VEGF-A.1 之间蛋白质-蛋白质相互作用的抑制剂。当使用浓度为 12.5 μM 时，它可抑制 43% 的相互作用。 当以相同浓度使用时，CAY10781 还抑制 VEGF-A 诱导的儿茶酚胺 A 分化 (CAD) 细胞中 VEGFR2 的磷酸化。

Sparstolonin B 是一种选择性 TLR2 和 TLR4 拮抗剂，是一种是一种从 Sparganium stoloniferum 和 Scirpus yagara 的块茎中分离出的异香豆素化合物，具有抗 HIV 、抗癌、抗肿瘤和抗炎活性，抑制选择性Toll样受体，抑制游离脂肪酸棕榈酸酯诱导的软骨细胞炎症并减轻肥胖小鼠的创伤后关节炎，抑制脂多糖诱导的 3T3-L1 脂肪细胞炎症，可用于研究验证和乳腺癌。

PSB-KD477 is an Agonist of the Cannabinoid-Activated Orphan G-Protein-Coupled Receptor GPR18. PSB-KD477 displayed significantly higher potency and efficacy than THC, determined in a GPR18-dependent β-arrestin recruitment assay, and were found to be selective versus the CB-sensitive receptors CB1, CB2, and GPR55. Structure-activity relationships were steep, and indole substitution was crucial for biological activity. These first selective agonists, which are structurally distinct from the lipidic agonist(s), will allow target validation studies and may eventually contribute to the deorphanization of GPR18.

Ritlecitinib, also known as PF-06651600, is a potent and selective JAK3 inhibitor. PF-06651600 is a potent and low clearance compound with demonstrated in vivo efficacy. The favorable efficacy and safety profile of this JAK3-specific inhibitor PF-06651600 led to its evaluation in several human clinical studies. JAK3 was among the first of the JAKs targeted for therapeutic intervention due to the strong validation provided by human SCID patients displaying JAK3 deficiencies.

PFI-6 is a selective and non-cytotoxic probe targeting the YEATS domain of MLLT1 (ENL YEATS1) and MLLT3 (AF9 YEATS3), with IC50 values of 140 nM for MLLT1 and 160 nM for MLLT3. It serves as a molecular tool to investigate the role of MLLT1 3 in diseases and genome validation studies [1].