ethyl 3,4-dihydro-7-methoxy-2H-chromene-2-carboxylate | 180716-13-6

• 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: ethyl 3,4-dihydro-7-methoxy-2H-chromene-2-carboxylate
• 英文别名: ethyl 7-methoxychroman-2-carboxylate；ethyl 7-methoxy-3,4-dihydro-2H-chromene-2-carboxylate
• CAS: 180716-13-6
• 化学式: C₁₃H₁₆O₄
• 分子量: 236.268
• InChiKey: KTVFLVGSBNPMTG-UHFFFAOYSA-N

物化性质

• 熔点：
  63-64 °C
• 沸点：
  338.2±42.0 °C(Predicted)
• 密度：
  1.150±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 3,4-dihydro-7-methoxy-2H-chromene-2-carboxylate 在 锂硼氢 、 四溴化碳 、 三苯基膦 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 16.0h， 生成 3-(7-Methoxy-chroman-2-ylmethyl-amino)-propanol
  参考文献：
  名称：

  New Generation Dopaminergic Agents. 1. Discovery of a Novel Scaffold Which Embraces the D₂ Agonist Pharmacophore. Structure−Activity Relationships of a Series of 2-(Aminomethyl)chromans

  摘要：

  A series of 2-(aminomethyl)chromans (2-AMCs) was synthesized and evaluated for their affinity and selectivity for both the high-and low-affinity agonist states (D-2(High) and D-2(Low), respectively) of the dopamine (DA) D-2 receptor. The 7-hydroxy-2-(aminomethyl)chroman moiety was observed to be the primary D-2 agonist pharmacophore. The 2-methylchroman moiety was discovered to be an entirely novel scaffold which could be used to access the D-2 agonist pharmacophore. Attaching various simple alkyl and arylalkyl side chains to the 7-hydroxy 2-AMC nucleus had significant effects on selectivity for the D-2(High) receptor vs the 5HT(1A) and alpha(1) receptors. A novel DA partial agonist, (R)-(-)-2-(benzylamino)methyl)chroman-7-ol [R-(-)-35c], was identified as having the highest affinity and best selectivity for the D-2(High) receptor vs the alpha(1) and 5HT(1A) receptors. Several regions of the 2-AMC nucleus were modified and recognized as potential sites to modulate the level of intrinsic activity. The global minimum conformer of the 7-hydroxy-2-AMC moiety was identified as fulfilling the McDermed model D-2 agonist pharmacophoric criteria and was proposed as the D-2 receptor-bound conformation. Structure-activity relationships gained from these studies have aided in the synthesis of D-2 partial agonists of varying intrinsic activity levels. These agents should be of therapeutic value in treating disorders resulting from hypo-and hyperdopaminergic activity, without the side effects associated with complete D-2 agonism or antagonism.

  DOI：

  10.1021/jm9703653
• 作为产物：
  描述：

  丹皮酚 在 palladium 10% on activated carbon 、 氢气 、 sodium hydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 乙醇 、 苯 为溶剂， 反应 31.0h， 生成 ethyl 3,4-dihydro-7-methoxy-2H-chromene-2-carboxylate
  参考文献：
  名称：

  仿生型方法用于木酮缩醛的三环核。适用于短促立体合成的白蛋白的合成，以及木糖酮G的首次合成

  摘要：

  描述了一种简便的方法来制备木酮缩醛的线性四氢呋喃苯并吡喃环系统。苯甲醇的原酸酯克莱森重排和分子内阳离子环化是合成中的关键步骤。利用这种策略，实现了短时，立体控制和高收率的植物毒性代谢物白蛋白的合成。的路易斯酸的唯一情况下催化的异构化外延-alboatrin到alboatrin进行了观察。随后该方法延长了xyloketal G，其中三个步骤即的一锅反应，乙酰化，异构化和脱甲基化的去甲混合物的乙酰化过程中出现的第一个全合成ö甲基xyloketal G和去甲ö甲基EPI在AlCl 3存在下木酮基G以非常好的总产率提供木酮基G。

  DOI：

  10.1016/j.tet.2011.04.084

文献信息

• Iridium-Catalyzed Enantioselective Hydrogenation of Unsaturated Heterocyclic Acids
  作者：Song Song、Shou-Fei Zhu、Liu-Yang Pu、Qi-Lin Zhou

  DOI：10.1002/anie.201301341

  日期：2013.6.3

  binding: A highly enantioselective hydrogenation of unsaturated heterocyclic acids has been developed by using chiral iridium/spirophosphino oxazoline catalysts (see scheme; BArF−=tetrakis[3,5‐bis(trifluoromethyl)phenyl]borate, Boc=tert‐butoxycarbonyl). This reaction provided an efficient method for the preparation of optically active heterocyclic acids with excellent enantioselectivities.

  螺旋结合：一种高度对映选择性的不饱和杂环羧酸的加氢已经通过使用手性铱/ spirophosphino恶唑啉催化剂开发（参见方案; BAR ˚F - =四[3,5-双（三氟甲基）苯基]硼酸盐，的Boc =叔丁氧羰基） 。该反应提供了制备具有优异对映选择性的旋光杂环酸的有效方法。
• Biomimetic type approach to the tricyclic core of xyloketals. Application to a short, stereocontrolled synthesis of alboatrin and first synthesis of xyloketal G
  作者：Debayan Sarkar、Ramanathapuram V. Venkateswaran

  DOI：10.1016/j.tet.2011.04.084

  日期：2011.6

  benzopyran ring system of xyloketals is described. An orthoester Claisen rearrangement of a chromenol and an intra-molecular cationic cyclization are the key steps in the synthesis. A short, stereocontrolled and high yield synthesis of the phytotoxic metabolite alboatrin was achieved employing this strategy. A unique case of Lewis acid catalyzed isomerization of epi-alboatrin to alboatrin was observed.

  描述了一种简便的方法来制备木酮缩醛的线性四氢呋喃苯并吡喃环系统。苯甲醇的原酸酯克莱森重排和分子内阳离子环化是合成中的关键步骤。利用这种策略，实现了短时，立体控制和高收率的植物毒性代谢物白蛋白的合成。的路易斯酸的唯一情况下催化的异构化外延-alboatrin到alboatrin进行了观察。随后该方法延长了xyloketal G，其中三个步骤即的一锅反应，乙酰化，异构化和脱甲基化的去甲混合物的乙酰化过程中出现的第一个全合成ö甲基xyloketal G和去甲ö甲基EPI在AlCl 3存在下木酮基G以非常好的总产率提供木酮基G。
• US5670667A
  申请人：——

  公开号：US5670667A

  公开（公告）日：1997-09-23
• US5684039A
  申请人：——

  公开号：US5684039A

  公开（公告）日：1997-11-04
• Bifunctional compounds targeting both D2 and non-α7 nACh receptors: Design, synthesis and pharmacological characterization
  作者：Carlo Matera、Luca Pucci、Chiara Fiorentini、Sergio Fucile、Cristina Missale、Giovanni Grazioso、Francesco Clementi、Michele Zoli、Marco De Amici、Cecilia Gotti、Clelia Dallanoce

  DOI：10.1016/j.ejmech.2015.06.039

  日期：2015.8

  We designed, prepared and tested a set of structural analogs 1-4 as new hybrid compounds by incorporating, through a common alkyl chain of variable length, the pharmacophoric elements of N-n-allcyl nicotinium salts (non-alpha 7 nicotinic acetylcholine receptors antagonists) and of 7-hydroxy-2-(aminomethyl)chromanes (dopaminergic D-2 receptor agonists). The target compounds, which were assayed in binding experiments and electrophysiological, functional and Erk1/2 activation tests, essentially combined the pharmacological profiles of their individual receptor ligands. Among the studied derivatives, hybrid 2, one of the shortest homologs, in addition to the antagonist nicotinic profile similar to the other three congeners, behaved as a high affinity ligand at the investigated heteromeric nAChRs and as a low efficacy agonist at D(2)Rs. These bifunctional derivatives represent novel pharmacological tools in the study of nicotine addiction. (C) 2015 Elsevier Masson SAS. All rights reserved.