2,6-dihydro-9-methoxy-2,2,6-trimethyl-5H-pyrano<3,2c>quinolin-5-one | 129225-33-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 2,6-dihydro-9-methoxy-2,2,6-trimethyl-5H-pyrano<3,2c>quinolin-5-one
• 英文别名: N-methylhaplamine；9-Methoxy-2,2,6-trimethyl-2,6-dihydro-pyrano[3,2-c]quinolin-5-one；9-methoxy-2,2,6-trimethylpyrano[3,2-c]quinolin-5-one
• CAS: 129225-33-8
• 化学式: C₁₆H₁₇NO₃
• 分子量: 271.316
• InChiKey: FRRGFNDZOQHMGT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  20
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  38.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  4-hydroxy-6-methoxy-N-methyl-3-(3-methylbut-2-enyl)-2-quinolone 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 生成 2,6-dihydro-9-methoxy-2,2,6-trimethyl-5H-pyrano<3,2c>quinolin-5-one
  参考文献：
  名称：

  Angular Methoxy-Substituted Furo- and Pyranoquinolinones as Blockers of the Voltage-Gated Potassium Channel Kv1.3

  摘要：

  The voltage-gated potassium channel Kv1.3 constitutes an attractive target for immunosuppression because of its role in T-lymphocyte activation and its functionally restricted expression to lymphocytes. Blockade of Kv1.3 channels by margatoxin has previously been shown to prevent T-cell activation and attenuate immune responses in vivo. In the present study, several furo-and pyranoquinoline derivatives were synthesized add screened for their blocking activities of Kv1.3 channels, stably expressed in mice-fibroblasts L929. In addition the activities of the compounds on Ky currents of the neuroblastoma cell line N1E-115 were determined. The most potent compounds, the angular furoquinolinone 8-methoxy-2-(1 ' -methylethyl)-5-methyl-4,5-dihydrofuro [3,2-c] quinolin-4-one (8c) and the angular pyranoquinolinone 9-methoxy-2,2,6-trimethyl-2,6-dihydro-5H-pyrano [3,2-c] quinolin-5-one (9a), inhibited Kv1.3 channels with half-blocking concentrations of 5 and 10 muM, respectively, and displayed 8-fold (8c) and 2-fold (9a) selectivity over Ky currents of N1E-115 cells. Thus, compounds 8c and 9a might function as a template for the development of novel immunosuppressants.

  DOI：

  10.1021/jm001007u

文献信息

• Environmentally benign, one-pot synthesis of pyrans by domino Knoevenagel/6π-electrocyclization in water and application to natural products
  作者：Ene Jin Jung、Byung Ho Park、Yong Rok Lee

  DOI：10.1039/c0gc00265h

  日期：——

  In water medium, environmentally benign, facile, and efficient synthesis of pyrans was achieved in good yields by the reactions of a variety of cyclic 1,3-dicarbonyls with several α,β-unsaturated aldehydes. The key strategy was a formal [3+3] cycloaddition by domino Knoevenagel/6π- electrocyclization. This methodology was applied to the synthesis of biologically interesting pyranocoumarin, pyranoquinolinone, and pyranonaphthoquinone derivatives along with selected natural and non-natural products.

  在水相介质中，通过多种环状1,3-二羰基化合物与若干α,β-不饱和醛的反应，以良好产率实现了吡喃的环保、简便、高效合成。关键策略是形式上的[3+3]环加成，通过多米诺Knoevenagel缩合/6π电环化反应实现。这一方法被应用于生物活性吡喃香豆素、吡喃喹啉酮和吡喃萘醌衍生物的合成，以及部分天然与合成产物的制备。
• Quinolinone alkaloids from an Agathosma species
  作者：William E. Campbell、Bette Davidowitz、Graham E. Jackson

  DOI：10.1016/0031-9422(90)85447-n

  日期：1990.1

  parts of a new species from the genus Agathosma yielded skimmianine and two new alkaloids which were identified by means of spectral data and synthesis as 4,6-dimethoxy-1-methyl-2(1H)-quinolinone and 2,6-dihydro-9-methoxy-2,2,6-trimethyl-5H-pyrano[3,2 c ]quinolin-5-one. Further related structures were synthesized and a 2D NMR study on the eight synthetic structures enabled us to correct some of the data

  摘要 从 Agathosma 属的一个新物种的地上部分产生了 skimmianine 和两种新的生物碱，通过光谱数据和合成鉴定为 4,6-二甲氧基-1-甲基-2(1H)-喹啉酮和 2,6-二氢-9-甲氧基-2,2,6-trimethyl-5H-pyrano[3,2c]quinolin-5-one。进一步合成了相关结构，对八种合成结构的 2D NMR 研究使我们能够更正文献中出现的一些数据。
• CAMPBELL, WILLIAM E.;DAVIDOWITZ, BETTE;JACKSON, GRAHAM E., PHYTOCHEMISTRY, 29,(1990) N, C. 1303-1306
  作者：CAMPBELL, WILLIAM E.、DAVIDOWITZ, BETTE、JACKSON, GRAHAM E.

  DOI：——

  日期：——