2,2,4,4-tetramethylthiochroman | 132102-28-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 硫铬烷
• 英文名称: 2,2,4,4-tetramethylthiochroman
• 英文别名: 2,2,4,4-Tetramethyl-3,4-dihydro-2H-1-benzothiopyran；2,2,4,4-tetramethyl-3H-thiochromene
• CAS: 132102-28-4
• 化学式: C₁₃H₁₈S
• 分子量: 206.352
• InChiKey: DNUAGQGSSJASDE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  25.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2,2,4,4-tetramethylthiochroman 在 硝酸 、 乙酸酐 、 铁粉 、 溶剂黄146 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 反应 37.5h， 生成 1-(2-methyl-4-nitrophenyl)-3-(2,2,4,4-tetramethyl-3H-thiochromen-6-yl)thiourea
  参考文献：
  名称：

  Synthesis of Flexible Sulfur-Containing Heteroarotinoids That Induce Apoptosis and Reactive Oxygen Species with Discrimination between Malignant and Benign Cells

  摘要：

  Regulation of growth, differentiation, and apoptosis by synthetic retinoids can occur through mechanisms that are dependent and independent of their ability to bind and activate nuclear retinoic acid receptors. The objective of this study was to determine if increasing flexibility of the heteroarotinoid structure would affect the specificity of the synthetic retinoids for the receptors and for their regulation of cancerous and nonmalignant cells. Methods were developed to produce the first examples of heteroarotinoids 15a-15h, which contain urea and/or thiourea linking groups between two aryl rings. Substituents at the para position of the single phenyl ring were either an ester, a nitro group, or a sulfonamide group. Ovarian cancer cell lines Caov-3, OVCAR-3, SK-OV-3, UCI-101, and 222 were utilized, and the inhibitory prowess of the heteroarotinoids was referenced to that of 4-HPR (25). Similar to 4-HPR (25), the heteroarotinoids inhibited growth of all cell lines at micromolar concentrations. Although the heteroarotinoids did not activate retinoic acid receptors, the agents induced potent growth inhibition against the cancer cells with weak activity against normal and benign cells. The growth inhibition was associated with cell loss and induction of reactive oxygen species.

  DOI：

  10.1021/jm030346v
• 作为产物：
  描述：

  4-甲基-3戊烯-2-酮 在 三氯化铝 、 三乙胺 作用下， 以 二硫化碳 、 乙醚 、 氯仿 为溶剂， 反应 37.0h， 生成 2,2,4,4-tetramethylthiochroman
  参考文献：
  名称：

  新型杂芳类化合物：合成和生物活性。

  摘要：

  在这项研究中，合成了13种杂芳类化合物。每种制备方法中的关键步骤是适当的苯并噻吩基，苯并噻吩基取代的苯并二氢吡喃取代的磷叶立德与相应的nium盐的独立合成得到的缩合，与所选的多烯取代的醛酯缩合。这些杂环中的九个包含硫代苯并二氢吡喃基团，两个具有苯并二氢吡喃基团，另外两个具有苯并噻吩基系统。用两种测定法之一筛选化合物。一种测定法测定了类维生素A抑制佛波酯诱导的小鼠表皮鸟氨酸脱羧酶（ODC）活性增加的能力。另一种测定法测定了类维生素A诱导的人肌样白血病细胞系HL-60的分化。在ODC分析中，筛选了所有13种化合物。活性最高的杂芳烃类化合物是酯10 [甲基（E）-4- [2-（2,2,4,4-四甲基硫代苯并吡喃-6-基）-1-丙烯基]苯甲酸酯]和酸11 [（E）-4- [2-（2,2,4,4-四甲基-3,4-二氢-2H-1-苯并噻喃-6-基）-1-丙烯基]苯甲酸]。这两种类维生素A的ID50值（

  DOI：

  10.1021/jm00105a065

文献信息

• Heteroarotinoids Inhibit Head and Neck Cancer Cell Lines in Vitro and in Vivo Through Both RAR and RXR Retinoic Acid Receptors
  作者：David Zacheis、Arindam Dhar、Shennan Lu、Matora M. Madler、Jozef Klucik、Chad W. Brown、Shengquan Liu、Francis Clement、Shankar Subramanian、G. Mahika Weerasekare、K. Darrell Berlin、Michael A. Gold、John R. Houck,、Kenneth R. Fountain、Doris M. Benbrook

  DOI：10.1021/jm990292i

  日期：1999.10.1

  A class of less toxic retinoids, called heteroarotinoids, was evaluated for their molecular mechanism of growth inhibition of two head and neck squamous cell carcinoma (HNSCC) cell lines SCC-2 and SCC-38. A series of 14 heteroarotinoids were screened for growth inhibition activity in vitro. The two most active compounds, one that contained an oxygen heteroatom (6) and the other a sulfur heteroatom (16), were evaluated in a xenograph model of tumor establishment in nude mice. Five days after subcutaneous injection of 10(7) SCC-38 cells, groups of 5 nu / nu mice were gavaged daily (5 days/week for 4 weeks) with 20 mg/kg/day of all-trans-retinoic acid (t-RA, 1), 10 mg/kg/day of 6, 10 mg/kg/day of 16, or sesame oil. After a few days, the dose of t-RA (1) was decreased to 10 mg/kg/day to alleviate the side effects of eczema and bone fracture. No significant toxic effects were observed in the heteroarotinoid groups. All three retinoids caused a statistically significant reduction in tumor size as determined by the Student t-test (P < 0.05). Complete tumor regression was noted in 3 of 5 mice treated with t-RA (1), 4 of 5 mice treated with 16, 1 of 5 mice treated with 6, and 1 of 5 mice treated with sesame oil. Reverse transcriptase polymerase chain reaction (RT-PCR) was used to determine that the expression levels of RAR alpha, RXR alpha, and RXR beta were similar in the two cell lines, while RAR beta expression was higher in SCC-2 over SCC-38, and RAR gamma expression was higher in SCC-38 over SCC-2. Receptor cotransfection assays in CV-1 cells demonstrated that 16 was a potent activator of both RAR and RXR receptors, while 6 was selective for the RXR receptors. Transient cotransfection assays in CV-1 cells using an AP-1 responsive reporter plasmid demonstrated that t-RA (1), 6, and 16 each inhibited AP-1-driven transcription in this cell line. In conclusion, the growth inhibition activity of the RXR-selective 6 and the more potent growth inhibition activity of the RAR/RXR pan-agonist 16 implicate both RARs and RXRs in the molecular mechanism of retinoid growth inhibition. Moreover, the chemoprevention activity and the lack of toxicity of heteroarotinoids demonstrate their clinical potential in head and neck cancer chemoprevention.
• Friedel–Crafts cyclization of tertiary alcohols using bismuth(III) triflate
  作者：Baskar Nammalwar、Richard A. Bunce

  DOI：10.1016/j.tetlet.2013.06.026

  日期：2013.8

  Bismuth(III) triflate [Bi(OTf)(3)] has been developed as an efficient and mild catalyst for intramolecular Friedel-Crafts cyclizations of tertiary alcohols to prepare disubstituted tetrahydronapthalenes, chromans, thiochromans, tetrahydroquinolines, and tetrahydroiso-quinolines. The method represents a unified strategy to synthesize a variety of ring systems from tertiary alcohols using a common Lewis acid. (C) 2013 Elsevier Ltd. All rights reserved.
• SPRUCE, LYLE W.;GALE, JONATHAN B.;BERLIN, K. DARRELL;VERMA, A. K.;BREITMA+, J. MED. CHEM., 34,(1991) N, C. 430-439
  作者：SPRUCE, LYLE W.、GALE, JONATHAN B.、BERLIN, K. DARRELL、VERMA, A. K.、BREITMA+

  DOI：——

  日期：——
• Novel heteroarotinoids: synthesis and biological activity
  作者：Lyle W. Spruce、Jonathan B. Gale、K. Darrell Berlin、A. K. Verma、Theodore R. Breitman、Xinhua Ji、Dick Van der Helm

  DOI：10.1021/jm00105a065

  日期：1991.1

  HL-60. In the ODC assay, all thirteen compounds were screened. The most active heteroarotinoids were ester 10 [methyl (E)-4-[2-(2,2,4,4-tetramethylthiochroman-6-yl)-1- propenyl]benzoate] and acid 11 [(E)-4-[2-(2,2,4,4-tetramethyl-3,4- dihydro-2H-1- benzothiopyran-6-yl)-1-propenyl]benzoic acid]. Both of these retinoids had ID50 values (dose required for half-maximal inhibition of phorbol ester induced

  在这项研究中，合成了13种杂芳类化合物。每种制备方法中的关键步骤是适当的苯并噻吩基，苯并噻吩基取代的苯并二氢吡喃取代的磷叶立德与相应的nium盐的独立合成得到的缩合，与所选的多烯取代的醛酯缩合。这些杂环中的九个包含硫代苯并二氢吡喃基团，两个具有苯并二氢吡喃基团，另外两个具有苯并噻吩基系统。用两种测定法之一筛选化合物。一种测定法测定了类维生素A抑制佛波酯诱导的小鼠表皮鸟氨酸脱羧酶（ODC）活性增加的能力。另一种测定法测定了类维生素A诱导的人肌样白血病细胞系HL-60的分化。在ODC分析中，筛选了所有13种化合物。活性最高的杂芳烃类化合物是酯10 [甲基（E）-4- [2-（2,2,4,4-四甲基硫代苯并吡喃-6-基）-1-丙烯基]苯甲酸酯]和酸11 [（E）-4- [2-（2,2,4,4-四甲基-3,4-二氢-2H-1-苯并噻喃-6-基）-1-丙烯基]苯甲酸]。这两种类维生素A的ID50值（
• Synthesis of Flexible Sulfur-Containing Heteroarotinoids That Induce Apoptosis and Reactive Oxygen Species with Discrimination between Malignant and Benign Cells
  作者：Shengquan Liu、Chad W. Brown、K. Darrell Berlin、Aridam Dhar、Suresh Guruswamy、David Brown、Ginger J. Gardner、Michael J. Birrer、Doris M. Benbrook

  DOI：10.1021/jm030346v

  日期：2004.2.1

  Regulation of growth, differentiation, and apoptosis by synthetic retinoids can occur through mechanisms that are dependent and independent of their ability to bind and activate nuclear retinoic acid receptors. The objective of this study was to determine if increasing flexibility of the heteroarotinoid structure would affect the specificity of the synthetic retinoids for the receptors and for their regulation of cancerous and nonmalignant cells. Methods were developed to produce the first examples of heteroarotinoids 15a-15h, which contain urea and/or thiourea linking groups between two aryl rings. Substituents at the para position of the single phenyl ring were either an ester, a nitro group, or a sulfonamide group. Ovarian cancer cell lines Caov-3, OVCAR-3, SK-OV-3, UCI-101, and 222 were utilized, and the inhibitory prowess of the heteroarotinoids was referenced to that of 4-HPR (25). Similar to 4-HPR (25), the heteroarotinoids inhibited growth of all cell lines at micromolar concentrations. Although the heteroarotinoids did not activate retinoic acid receptors, the agents induced potent growth inhibition against the cancer cells with weak activity against normal and benign cells. The growth inhibition was associated with cell loss and induction of reactive oxygen species.