2-ethyl-3-methoxy-1,4-naphthoquinone | 21245-66-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 2-ethyl-3-methoxy-1,4-naphthoquinone
• 英文别名: 2-methoxy-3-ethyl-1,4-naphthoquinone；3-Aethyl-2-methoxy-1,4-naphthochinon；2-Methoxy-3-ethyl-1,4-naphthochinon；2-Ethyl-3-methoxynaphthalene-1,4-dione
• CAS: 21245-66-9
• 化学式: C₁₃H₁₂O₃
• 分子量: 216.236
• InChiKey: GUPAHNZTWAOTOG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-溴-1,4-萘醌 在 ammonium peroxydisulfate 、 potassium carbonate 、 silver nitrate 、 potassium hydroxide 作用下， 以 甲醇 、 水 、 丙酮 、 乙腈 为溶剂， 反应 3.0h， 生成 2-ethyl-3-methoxy-1,4-naphthoquinone
  参考文献：
  名称：

  Design, Synthesis, and Biological Testing of Novel Naphthoquinones as Substrate-Based Inhibitors of the Quinol/Fumarate Reductase from Wolinella succinogenes

  摘要：

  Novel naphthoquinones were designed, synthesized, and tested as substrate-based inhibitors against the membrane-embedded protein quinol/fumarate reductase (QFR) from Wolinella succinogenes, a target closely related to QFRs from the human pathogens Helicobacter pylori and Campylobacter jejuni. For a better understanding of the hitherto structurally unexplored substrate binding pocket, a structure activity relationship (SAR) study was carried out. Analogues of lawsone (2-hydroxy-1,4-naphthoquinone 3a) were synthesized that vary in length and size of the alkyl side chains (3b-k). A combined study on the prototropic tautomerism of 2-hydroxy-1,4-naphthoquinones series indicated that the 1,4-tautomer is the more stable and biologically relevant isomer and that the presence of the hydroxyl group is crucial for inhibition. Furthermore, 2-bromine-1,4-naphthoquinone (4a-c) and 2-methoxy-1,4-naphthoquinone (5a-b) series were also discovered as novel and potent inhibitors. Compounds 4a and 4b showed IC50 values in low micromolar range in the primary assay and no activity in the counter DT-diaphorase assay.

  DOI：

  10.1021/jm400978u

文献信息

• Naphtalene anti-psoriatic agents
  申请人：SYNTEX (U.S.A.) INC.

  公开号：EP0282006A1

  公开（公告）日：1988-09-14

  Psoriasis in mammals is relieved by administering naphthalenes of the formula: wherein:     R¹ is lower alkoxy or optionally substituted phenoxy;     R² is hydrogen, lower alkyl, lower alkoxy, optionally substituted phenyl, optionally substituted phenoxy or optionally substituted phenylalkyl;     R³ is hydrogen, lower alkyl, lower alkoxy, halo, optionally substituted phenyl, optionally substituted phenyl-lower-alkyl or optionally substituted phenyl-lower-­alkoxy, and m is 1 or 2;     X and Y may be different or are the same, and if different are either R⁴ or -C(O)W, and if the same are both -C(O)W, wherein     R⁴ is lower alkyl or optionally substituted phenyl-lower-alkyl;     W is -OR⁵ or -NR⁶R⁷,     wherein R⁵ is alkyl, optionally substituted phenyl or optionally substituted benzyl; and R⁶ and R⁷ are independently hydrogen, lower alkyl, cycloalkyl or optionally substituted phenyl.

  哺乳动物的牛皮癣可通过服用式中的萘来缓解： 其中 R¹ 是低级烷氧基或任选取代的苯氧基； R² 是氢、低级烷基、低级烷氧基、任选取代的苯基、任选取代的苯氧基或任选取代的苯基烷基； R³ 是氢、低级烷基、低级烷氧基、卤代、任选取代的苯基、任选取代的苯基-低级烷基或任选取代的苯基-低级烷氧基，且 m 是 1 或 2； X 和 Y 可以不同或相同，如果不同，则为 R⁴ 或 -C(O)W，如果相同，则均为 -C(O)W、 其中 R⁴ 是低级烷基或任选取代的苯基-低级烷基； W 是-OR⁵或-NR⁶R⁷、 其中 R⁵ 是烷基、任选取代的苯基或任选取代的苄基；以及 R⁶ 和 R⁷ 独立地为氢、低级烷基、环烷基或任选取代的苯基。
• Naphthalene anti-psoriatic agents
  申请人：SYNTEX (U.S.A.) INC.

  公开号：EP0282056A2

  公开（公告）日：1988-09-14

  Psoriasis in mammals is relieved by topically administering naphthalenes of the formula: wherein:     R¹ is lower alkoxy or optionally substituted phenoxy;     R² is hydrogen, lower alkyl, optionally substituted phenyl or optionally substituted phenyl-lower-alkyl;     R³ is hydrogen, lower alkyl, lower alkoxy, halo, optionally substituted phenyl, optionally substituted phenyl-lower-alkyl or optionally substituted phenyl-lower-­alkoxy, and m is 1 or 2;     X and Y are different and are selected from the group consisting of hydrogen, R⁴ and -C(O)W, wherein     W is alkyl of one to seven carbon atoms, optionally substituted phenyl or optionally substituted benzyl; and     R⁴ is lower alkyl or optionally substituted phenyl-lower-alkyl.

  哺乳动物的牛皮癣可通过局部施用式中的萘来缓解： 其中 R¹ 是低级烷氧基或任选取代的苯氧基； R² 是氢、低级烷基、任选取代的苯基或任选取代的苯基-低级烷基； R³ 是氢、低级烷基、低级烷氧基、卤代、任选取代的苯基、任选取代的苯基-低级烷基或任选取代的苯基-低级烷氧基，且 m 是 1 或 2； X 和 Y 不同，且选自由氢、R⁴ 和-C(O)W 组成的组、 其中 W 是一至七个碳原子的烷基、任选取代的苯基或任选取代的苄基；和 R⁴ 是低级烷基或任选取代的苯基-低级烷基。
• Synthesis of glucosides of 3-alk[en]yl-2-hydroxy-1,4-naphthoquinones
  作者：S. G. Polonik、A. M. Tolkach、V. A. Denisenko、N. I. Uvarova

  DOI：10.1007/bf00579767

  日期：——
• US4758587A
  申请人：——

  公开号：US4758587A

  公开（公告）日：1988-07-19
• US4786652A
  申请人：——

  公开号：US4786652A

  公开（公告）日：1988-11-22