tert-butyl 5-(2-aminoethyl)-1,2,5-thiadiazolidine-2-carboxylate 1,1-dioxide | 1261242-22-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机硫酸及其衍生物
• 英文名称: tert-butyl 5-(2-aminoethyl)-1,2,5-thiadiazolidine-2-carboxylate 1,1-dioxide
• CAS: 1261242-22-1
• 化学式: C₉H₁₉N₃O₄S
• 分子量: 265.334
• InChiKey: LBLSMFOAIUUQHH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.26
• 重原子数：
  17.0
• 可旋转键数：
  2.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  92.94
• 氢给体数：
  1.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  tert-butyl 5-(2-aminoethyl)-1,2,5-thiadiazolidine-2-carboxylate 1,1-dioxide 、 在 sodium hydroxide 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 以30%的产率得到N-(3-bromo-4-(ethylselanyl)phenyl)-4-((2-(1,1-dioxido-1,2,5-thiadiazolidin.-2-yl)ethyl)amino)-N′-hydroxy-1,2,5-oxadiazole-3-carboximidamide
  参考文献：
  名称：

  Design, synthesis and antitumor study of a series of N-Cyclic sulfamoylaminoethyl substituted 1,2,5-oxadiazol-3-amines as new indoleamine 2, 3-dioxygenase 1 (IDO1) inhibitors

  摘要：

  Indoleamine 2, 3-dioxygenase 1 (IDO1) plays a key role in tryptophan catabolism which is an important mechanism in immune tolerance. The small molecule epacadostat is the most advanced IDO1 inhibitor, but its phase III trials as a single agent or in combinations with PD-1 antibody failed to show appreciable objective responses. To gain more insight on the antitumor efficacy of IDO1 inhibitors, we have designed a series of analogues of epacadostat by incorporating a cyclic aminosulfonamide moiety as the sidechain capping functionality. Compound 5a was found to display significant potency against recombinant hIDO1 and hIDO1 expressed HEK293 cancer cells. This compound has improved physico-chemical properties, acceptable PK parameters as well as optimal cardiac safety. Similar to epacadostat, 5a is ineffective as single agent in the CT-26 syngeneic xenograft model, however, the combination of 5a with PD-1 antibody showed both elevated tumor growth inhibition and prolonged median life span. (C) 2019 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2019.06.037
• 作为产物：
  描述：

  在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 生成 tert-butyl 5-(2-aminoethyl)-1,2,5-thiadiazolidine-2-carboxylate 1,1-dioxide
  参考文献：
  名称：

  Design, synthesis and antitumor study of a series of N-Cyclic sulfamoylaminoethyl substituted 1,2,5-oxadiazol-3-amines as new indoleamine 2, 3-dioxygenase 1 (IDO1) inhibitors

  摘要：

  Indoleamine 2, 3-dioxygenase 1 (IDO1) plays a key role in tryptophan catabolism which is an important mechanism in immune tolerance. The small molecule epacadostat is the most advanced IDO1 inhibitor, but its phase III trials as a single agent or in combinations with PD-1 antibody failed to show appreciable objective responses. To gain more insight on the antitumor efficacy of IDO1 inhibitors, we have designed a series of analogues of epacadostat by incorporating a cyclic aminosulfonamide moiety as the sidechain capping functionality. Compound 5a was found to display significant potency against recombinant hIDO1 and hIDO1 expressed HEK293 cancer cells. This compound has improved physico-chemical properties, acceptable PK parameters as well as optimal cardiac safety. Similar to epacadostat, 5a is ineffective as single agent in the CT-26 syngeneic xenograft model, however, the combination of 5a with PD-1 antibody showed both elevated tumor growth inhibition and prolonged median life span. (C) 2019 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2019.06.037

文献信息

• Synthesis of New 6-(4-Fluorophenyl)-5-(2-substituted pyrimidin-4-yl)imidazo[2,1-b] thiazole Derivatives and their Antiproliferative Activity against Melanoma Cell Line
  作者：Jin-Hun Park、Chang-Hyun Oh

  DOI：10.5012/bkcs.2010.31.10.2854

  日期：2010.10.20

  Synthesis of a new series of pyrimidinyl-imidazo(2,1-b)thiazole derivatives is described. Their antiproliferative activity against A375 human melanoma cell line was tested and the effect of substituents on the pyrimidinyl ring side chain was investigated. The biological results indicated that most of the newly synthesized compounds showed mo- derate activity against A375, compared with Sorafenib. Among

  描述了一系列新的嘧啶基-咪唑(2,1-b)噻唑衍生物的合成。测试了它们对 A375 人黑色素瘤细胞系的抗增殖活性，并研究了取代基对嘧啶环侧链的影响。生物学结果表明，与索拉非尼相比，大多数新合成的化合物对 A375 具有中等活性。在所有这些衍生物中，环状磺酰胺衍生物 IIIa、IIIb 和 IIIe 对 A375 人黑色素瘤细胞系显示出最有效的抗增殖活性。化合物 IIIa、b 的 IC50 值为纳摩尔级。此外，与索拉非尼 (IC50 = 5.6 µM) 相比，化合物 IIIe (IC50 = 1.9 µM) 也显示出更有效的抗增殖活性。