u266

Iberdomide (CC-220) 是一种口服有效的 cereblon E3 连接酶调节剂，对 cereblon 结合亲和力的 IC50约为150 nM。它是沙利度胺的衍生物，具有抗肿瘤和免疫刺激活性。

Cladribine (2CdA) 是一种嘌呤核苷类似物，是具有口服活性的腺苷脱氨酶抑制剂。它能作为 DNA 合成的抑制剂，可阻断受损 DNA 的修复。它可抑制 DNA 甲基化，具有抗淋巴瘤活性，可研究血液恶性肿瘤和多发性硬化。

AVN-944 (VX-944) 是一种选择性的、非竞争性 IMPDH 抑制剂，对IMPDH1和IMPDH2的Ki=为6-10nM。

GSK126 (GSK2816126A) 是一种 EZH2 甲基转移酶抑制剂 (IC50=9.9 nM)，具有有效性和选择性。GSK126 具有抗肿瘤活性，可以抑制肿瘤细胞增殖、抑制血管生成。

2,5-Dihydroxyacetophenone (Quinacetophenone) 是从熟地黄中分离出的一种天然产物，通过阻断 ERK1 2和 NF-κB 信号通路，抑制活化巨噬细胞中炎症介质的产生。

8-Chloroadenosine (NSC-354258) 是一种 5' AMP 激活的蛋白激酶激动剂，可能用于治疗慢性淋巴细胞白血病。 它的活性与 mTOR 通路的抑制有关。它是一种核苷类似物。在体内代谢为 8-氯-ATP。在转录过程中掺入 RNA 并抑制 RNA 合成。在 MM.1S、RPMI-8226 和 U266 癌细胞系中表现出细胞毒性；在 A549 和 H1299 细胞中诱导 G2 M 细胞周期停滞和有丝分裂灾难。它已被证明可消耗 ATP 并抑制血液恶性肿瘤以及肺癌和乳腺癌细胞系中的肿瘤生长。

JRN73958 is an important precursor for the synthesis of scytonemin, also called Reduced scytonemin. Scytonemin is a biological pigment synthesized by many strains of cyanobacteria, including Calothrix sp., Lyngbya aestuarii, and others. Scytonemin is also a potent PKL1 inhibitor, which inhibits cell proliferation and arrests cell cycle through downregulating Plk1 activity in many cancel cells. Scytonemin was able to inhibit the proliferation of three myeloma cells in a dose-dependent manner, while U266 was the most sensitive one to scytonemin. Scytonemin , representing a novel Plk1 inhibitor, induced the inhibition of cell growth and cell cycle arrest in multiple myeloma cells by specifically decreasing Plk1 activity. This product has no formal name at the moment. For the convenience of communication, a temporary code name was therefore proposed according to MedKoo Chemical Nomenclature (see web page: https: www.medkoo.com page naming).

Scytonemin is a biological pigment synthesized by many strains of cyanobacteria, including Calothrix sp., Lyngbya aestuarii, and others. Scytonemin is also a potent PKL1 inhibitor, which inhibits cell proliferation and arrests cell cycle through downregulating Plk1 activity in many cancel cells. Scytonemin was able to inhibit the proliferation of three myeloma cells in a dose-dependent manner, while U266 was the most sensitive one to scytonemin. Scytonemin , representing a novel Plk1 inhibitor, induced the inhibition of cell growth and cell cycle arrest in multiple myeloma cells by specifically decreasing Plk1 activity.

JMN13497 is an precursor compound to for synthesis of scytonemin. Scytonemin is a biological pigment synthesized by many strains of cyanobacteria, including Calothrix sp., Lyngbya aestuarii, and others. Scytonemin is also a potent PKL1 inhibitor, which inhibits cell proliferation and arrests cell cycle through downregulating Plk1 activity in many cancel cells. Scytonemin was able to inhibit the proliferation of three myeloma cells in a dose-dependent manner, while U266 was the most sensitive one to scytonemin. Scytonemin , representing a novel Plk1 inhibitor, induced the inhibition of cell growth and cell cycle arrest in multiple myeloma cells by specifically decreasing Plk1 activity. This product has no formal name at the moment. For the convenience of communication, a temporary code name was therefore proposed according to MedKoo Chemical Nomenclature (see web page: https: www.medkoo.com page naming).

Nifuroxazide-d4 is intended for use as an internal standard for the quantification of nifuroxazide by GC- or LC-MS. Nifuroxazide is a nitrofuran antibiotic. It is active against strains of the enteropathogenic bacteria C. jejuni, Salmonella, Y. enterocolitica, Shigella, and E. coli. It inhibits quorum sensing and virulence factor production in P. aeruginosa. Nifuroxazide inhibits STAT3 activity in a reporter assay and decreases viability of U266 and INA-6 myeloma cells, which have constitutive STAT3 phosphorylation, with EC50 values of approximately 4.5 µM for both. It also decreases viability, migration, and invasion of, and induces apoptosis in, MCF-7, 4T1, and MDA-MB-231 breast cancer cells. Nifuroxazide reduces tumor growth and prevents pulmonary metastasis in a 4T1 murine mammary carcinoma model. It also reduces diarrhea, weight loss, and colon inflammation in a rat model of acetic acid-induced ulcerative colitis.

HDAC6-IN-18（化合物4）是首个针对HDAC6亚型的不可逆选择性抑制剂，显示出有效的抗多发性骨髓瘤活性。该抑制剂在RPMI8266、U266以及MM.1S细胞系中表现出对HDAC6的抑制效力，其IC50值分别为0.17、0.7和0.42 μM[1]。

Dimethylmatairesinol can reduce the amount of Immunoglobulin E (IgE) secreted by human myeloma U266 cells, it has potential as an anti-allergic agent. Dimethylmatairesinol also exhibits significant cytotoxicity against three human tumor cells(A-549 lung c