6 mercaptopurine

6-Mercaptopurine (6-MP) 是一种具有免疫抑制特性的抗代谢物抗肿瘤剂。它通过抑制嘌呤代谢来干扰核酸合成，通常与其他药物联合用于白血病的治疗或缓解维持计划。

7-Methyl-6-mercaptopurine (7-Methyl-6-thiopurine) 是 PRPP 氨基转移酶的抑制剂，抑制 IMP 代谢并阻止嘌呤、DNA 和 RNA 合成。

6-Mercaptopurine hydrate (6-Mercaptopurine monohydrate) 是一种核苷代谢抑制剂。它通过抑制嘌呤代谢来干扰核酸合成，通常与其他药物联合用于白血病的治疗或缓解维持计划。

6-Thioguanine (2-Amino-6-purinethiol) 是一种抗白血病和免疫抑制剂，是 SARS 和 MERS 冠状病毒木瓜样蛋白酶抑制剂，也抑制 USP2的活性，IC50值分别为 25 μM 和 40 μM。

6-​Thioinosine (6TI) 是一种嘌呤抗代谢物，是抗脂肪形成剂，能降低PPAR γ和C EBPα及其目标基因 aP2、CD36、LPL 和 LXRα 的 mRNA 水平。

Thio-ITP, also known as 6-Thioinosine 5'-triphosphate, is a competitive inhibitor of RNA polymerase activity. It exhibits a strong apparent affinity towards the polymerases, with Ki values of 40.9 μM for RNA polymerase I and 38.0 μM for RNA polymerase II.

Azathioprine (BW 57-322) 是一种免疫抑制剂。

Ansatrienin B is an ansamycin antibiotic and antifungal agent first isolated from S. collinus and S. rishiriensis., In fetal rat long bones, it is an inhibitor of parathyroid hormone-induced calcium release (IC50 = 21 nM), which is a measure of bone resorption, and pp60c-src kinase (IC50 = 50 nM). It is an inhibitor of translation at the protein synthesis stage by specific inhibition of L-leucine incorporation (IC50 = 58 nM in A549 cells). It also inhibits TNF-α-induced expression of intercellular adhesion molecule-1 (ICAM-1; IC50 = 300 nM). Early in vitro studies showed that ansatrienin B potentiates the chemotherapeutic action of 5-fluorouracil , cisplatin , bleomycin , mitomycin C , and 6-mercaptopurine. Ansatrienin B is a hydroquinone form of ansatrienin A .

Ansatrienin A is an ansamycin antibiotic and antifungal agent first isolated from S. collinus and S. rishiriensis. In fetal rat long bones, it is an inhibitor of parathyroid hormone-induced calcium release (IC50 = 64 nM), which is a measure of bone resorption, and pp60c-srcM kinase (IC50 = 100 nM). It also inhibits TNF-α-induced expression of intercellular adhesion molecule-1 (ICAM-1; IC50 = 570 nM). Early in vitro studies showed that ansatrienin A potentiates the chemotherapeutic action of 5-fluorouracil , cisplatin , bleomycin , mitomycin C , and 6-mercaptopurine. It is an oxidized form of ansatrienin B .

Azathioprine Sodium is the sodium salt form of azathioprine, a pro-drug of purine analogue with immunosuppressive activity. Azathioprine is converted in vivo to its active metabolite 6-mercaptopurine (6-MP), which substitutes for the normal nucleoside and mistakenly gets incorporated into DNA sequences. This leads to inhibition of DNA, RNA, and protein synthesis. As a result, cell proliferation may be inhibited, particularly in lymphocytes and leukocytes.