2,8,8-trimethyl-4H,8H-benzo<1,2-b:3,4-b'>dipyran-4-one | 38070-92-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 2,8,8-trimethyl-4H,8H-benzo<1,2-b:3,4-b'>dipyran-4-one
• 英文别名: 2,2',2'-trimethylpyrano[2,3-f]chromone；2,8,8-trimethyl-4H,8H-benzo[1,2-b:3,4-b']dipyran-4-one；2,8,8-Trimethylpyrano[2,3-f]chromen-4-one
• CAS: 38070-92-7
• 化学式: C₁₅H₁₄O₃
• 分子量: 242.274
• InChiKey: SQDFWWOAHIUPCZ-UHFFFAOYSA-N

物化性质

• 熔点：
  123-125 °C
• 沸点：
  383.4±42.0 °C(Predicted)
• 密度：
  1.183±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  18
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,8,8-trimethyl-4H,8H-benzo<1,2-b:3,4-b'>dipyran-4-one 在 4-二甲氨基吡啶 、 potassium osmate(VI) dihydrate 、 (8a,9R,8′′′a,9′′′R)-9,9′-[(2,5-diphenylpyrimidine-4,6-diyl)bis(oxy)]bis(6′-methoxy-10,11-dihydrocinchonan) 、 甲基磺酰胺 、 potassium carbonate 、 potassium hexacyanoferrate(III) 作用下， 以 二氯甲烷 、 水 、 叔丁醇 为溶剂， 生成 3'R,4'R-di-O-(-)-camphanoyl-2,2',2'-trimethyldihydropyrano[2,3-f]chromone
  参考文献：
  名称：

  Anti-AIDS agents 89. Identification of DCX derivatives as anti-HIV and chemosensitizing dual function agents to overcome P-gp-mediated drug resistance for AIDS therapy

  摘要：

  In this study, 19 dicamphanoyl-dihydropyranochromone (DCP) and dicamphanoyl-dihydropyranoxanth-one (DCX) derivatives, previously discovered as novel anti-HIV agents, were evaluated for their potential to reverse multi-drug resistance (MDR) in a cancer cell line over-expressing P-glycoprotein (P-gp). Seven compounds fully reversed resistance to vincristine (VCR) at 4 mu M, a 20-fold enhancement compared to the first generation chemosensitizer, verapamil (4 mu M). The mechanism of action of DCPs and DCXs was also resolved, since the most active compounds (3, 4, and 7) significantly increased intracellular drug accumulation due, in part, to inhibiting the P-gp mediated drug efflux from cells. We conclude that DCPs (3 and 4) and DCXs (7, 11, and 17) can exhibit polypharmacologic behavior by acting as dual inhibitors of HIV replication and chemoresistance mediated by P-gp. As such, they may be useful in combination therapy to overcome P-gp-associated drug resistance for AIDS treatment. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2012.03.037
• 作为产物：
  描述：

  1-[2-羟基-4-(甲氧基甲氧基)苯基]乙酮 在 Amberlyst 15 resin 、 sodium hydride 、 potassium carbonate 、 N,N-二乙基苯胺 、 potassium iodide 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 、 异丙醇 为溶剂， 反应 2.0h， 生成 2,8,8-trimethyl-4H,8H-benzo<1,2-b:3,4-b'>dipyran-4-one
  参考文献：
  名称：

  抗艾滋病剂。60.取代的3′R，4′R-二-O-（-）-樟脑酰基-2′，2′-二甲基二氢吡喃并[2，3-f]色酮（DCP）类似物作为有效的抗HIV剂。

  摘要：

  位置异构体的合成是药物设计中常用的技术。因此，根据先前对3'R，4'R-di-O-（S）-樟脑酰基-（+）-顺式-甲壳酮（DCK，1）类似物的SAR研究，一系列的单或双取代色酮衍生物设计并合成了3'R，4'R-di-O-（-）-樟脑酰基-2'，2'-二甲基二氢吡喃并[2,3-f]色酮（DCP，4）。连同1和4-甲基DCK（2）一起，对所有新合成的DCP类似物（4-21）筛选针对H9淋巴细胞中的非耐药菌株和多重逆转录酶（RT）的抗HIV-1活性。 MT4细胞系中具有抗抑制剂作用的菌株。几种DCP类似物（4、5、7、8、13和17）在非耐药菌株测定中显示出极高的抗HIV活性，EC（50）值在0.00032至0之间。0057 microM和显着的治疗指数（TI）从5.6 x 10（3）到1.16 x 10（5），与2的相似（EC（50）0.0059 microM，TI> 6.6 x 10（3））和优于1（EC（50）0

  DOI：

  10.1021/jm0400505

文献信息

• A Convenient Synthesis of Linear 2-Methylpyranochromones
  作者：Vinod Kumar Ahluwalia、Anjula Jain、Ranjna Gupta

  DOI：10.1246/bcsj.55.2649

  日期：1982.8

  hyl-4H-1-benzopyran-4-one with iodine followed by thermal cyclization. The linear pyranochromones 2,2,8-trimethyl-2H,6H-benzo[1,2-b:5,4-b′]dipyran-6-one and 8 are also synthesized starting with the easily available appropriate 3,4-dihydro-2,2-dimethyl-2H-1-benzopyran-7-ols following the steps of Claisen condensation with ethyl acetate, cyclization with ethanolic sulfuric acid followed by dehydrogenation

  线性 2-methylpyranochromones 的方便合成，即，spatheliachromen(5-hydroxy-2,2,8-trimethyl-2H,6H-benzo[1,2-b:5,4-b']dipyran-6-one ), O-methylspatheliachromen (5-methoxy-2,2,8-trimethyl-2H,6H-benzo[1,2-b:5,4-b']dipyran-6-one) (8) 和 O-methylallopteroxylin (5-甲氧基-2,8,8-三甲基-4H,8H-苯并[1,2-b:3,4-b']dipyran-4-one)通过封闭相应7-的第八位来描述炔丙醚衍生物 7-(1,1-二甲基-2-丙炔氧基)-8-iodo-5-methoxy-2-methyl-4H-1-benzopyran-4-one 与碘，然后热环化。线性吡喃色酮 2
• Anti-AIDS agents 79. Design, synthesis, molecular modeling and structure–activity relationships of novel dicamphanoyl-2′,2′-dimethyldihydropyranochromone (DCP) analogs as potent anti-HIV agents
  作者：Ting Zhou、Qian Shi、Chin-Ho Chen、Hao Zhu、Li Huang、Phong Ho、Kuo-Hsiung Lee

  DOI：10.1016/j.bmc.2010.07.065

  日期：2010.9

  In a continued study, 23 3'R,4'R-di-O-(-)-camphanoyl-2',2'-dimethyldihydropyrano[2,3-f]chromone (DCP) derivatives (5-27) were synthesized, and screened for anti-HIV activity against both a non-drug-resistant NL4-3 strain and multiple reverse transcriptase (RT) inhibitor-resistant (RTMDR-1) strain, using 2-EDCP (4) and 2-MDCP (35) as controls. New DCP analogs 5, 9, 14, and 22 exhibited potent anti-HIV activity against HIV(NL4-3) with EC(50) and therapeutic index (TI) values ranging from 0.036 mu M to 0.14 mu M and from 110 to 420, respectively. Compounds 5 and 9 also exhibited good activity against RTMDR-1 (EC(50) 0.049 and 0.054 mu M; TI 310 and 200, respectively), and were twofold more potent than the leads 4 and 35 (EC(50) 0.11 and 0.19 mu M; TI 60 and 58, respectively). Evaluation of water solubility showed that 5 and 22 were 5-10 times more water soluble than 4. Quantitative structure-activity relationship (QSAR) modeling results were first performed on this compound type, and the models should aid in design of future anti-HIV DCP analogs and potential clinical drug candidates. (c) 2010 Elsevier Ltd. All rights reserved.
• Anti-AIDS agents 89. Identification of DCX derivatives as anti-HIV and chemosensitizing dual function agents to overcome P-gp-mediated drug resistance for AIDS therapy
  作者：Ting Zhou、Emika Ohkoshi、Qian Shi、Kenneth F. Bastow、Kuo-Hsiung Lee

  DOI：10.1016/j.bmcl.2012.03.037

  日期：2012.5

  In this study, 19 dicamphanoyl-dihydropyranochromone (DCP) and dicamphanoyl-dihydropyranoxanth-one (DCX) derivatives, previously discovered as novel anti-HIV agents, were evaluated for their potential to reverse multi-drug resistance (MDR) in a cancer cell line over-expressing P-glycoprotein (P-gp). Seven compounds fully reversed resistance to vincristine (VCR) at 4 mu M, a 20-fold enhancement compared to the first generation chemosensitizer, verapamil (4 mu M). The mechanism of action of DCPs and DCXs was also resolved, since the most active compounds (3, 4, and 7) significantly increased intracellular drug accumulation due, in part, to inhibiting the P-gp mediated drug efflux from cells. We conclude that DCPs (3 and 4) and DCXs (7, 11, and 17) can exhibit polypharmacologic behavior by acting as dual inhibitors of HIV replication and chemoresistance mediated by P-gp. As such, they may be useful in combination therapy to overcome P-gp-associated drug resistance for AIDS treatment. (C) 2012 Elsevier Ltd. All rights reserved.
• Anti-AIDS Agents. 60. Substituted 3‘<i>R</i>,4‘<i>R</i>-Di-<i>O</i>-(−)-camphanoyl-2‘,2‘-dimethyldihydropyrano[2,3-<i>f</i>]chromone (DCP) Analogues as Potent Anti-HIV Agents
  作者：Donglei Yu、Chin-Ho Chen、Arnold Brossi、Kuo-Hsiung Lee

  DOI：10.1021/jm0400505

  日期：2004.7.1

  Synthesis of positional isomers is a commonly used technique in drug design. Accordingly, based on prior SAR studies of 3'R,4'R-di-O-(S)-camphanoyl-(+)-cis-khellactone (DCK, 1) analogues, a series of mono- and disubstituted chromone derivatives of 3'R,4'R-di-O-(-)-camphanoyl-2',2'-dimethyldihydropyrano[2,3-f]chromone (DCP, 4) were designed and synthesized. Together with 1 and 4-methyl DCK (2), all

  位置异构体的合成是药物设计中常用的技术。因此，根据先前对3'R，4'R-di-O-（S）-樟脑酰基-（+）-顺式-甲壳酮（DCK，1）类似物的SAR研究，一系列的单或双取代色酮衍生物设计并合成了3'R，4'R-di-O-（-）-樟脑酰基-2'，2'-二甲基二氢吡喃并[2,3-f]色酮（DCP，4）。连同1和4-甲基DCK（2）一起，对所有新合成的DCP类似物（4-21）筛选针对H9淋巴细胞中的非耐药菌株和多重逆转录酶（RT）的抗HIV-1活性。 MT4细胞系中具有抗抑制剂作用的菌株。几种DCP类似物（4、5、7、8、13和17）在非耐药菌株测定中显示出极高的抗HIV活性，EC（50）值在0.00032至0之间。0057 microM和显着的治疗指数（TI）从5.6 x 10（3）到1.16 x 10（5），与2的相似（EC（50）0.0059 microM，TI> 6.6 x 10（3））和优于1（EC（50）0