(R)-trans-3,4-dimethyl-cyclopentanone | 19550-73-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (R)-trans-3,4-dimethyl-cyclopentanone
• 英文别名: (R)-trans-3,4-Dimethyl-cyclopentanon；(3R,4R)-3,4-dimethyl-cyclopentanone；(R,R)-3,4-dimethyl-cyclopentanone；(3R,4R)-3,4-Dimethylcyclopentanon；3r,4t-Dimethyl-cyclopentan-1-on；trans-3,4-Dimethylcyclopentanon；Trans-3,4-dimethyl cyclopentanone；(3R,4R)-3,4-dimethylcyclopentan-1-one
• CAS: 19550-73-3
• 化学式: C₇H₁₂O
• 分子量: 112.172
• InChiKey: ZMGMYCHEWPVBEL-PHDIDXHHSA-N

物化性质

• 沸点：
  154.8±8.0 °C(Predicted)
• 密度：
  0.895±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  2914299000

反应信息

• 作为反应物：
  描述：

  (R)-trans-3,4-dimethyl-cyclopentanone 在 sodium metabisulfite 作用下， 以 水 为溶剂， 反应 2.58h， 生成 sodium (S,S)-1-hydroxy-3,4-dimethyl-cyclopentanesulfonate
  参考文献：
  名称：

  [EN] STEREOSELECTIVE SYNTHESIS OF 3,4-DISUBSTITUTED CYCLOPENTANONES AND RELATED COMPOUNDS
  [FR] SYNTHESE STEREOSELECTIVE DE CYCLOPENTANONES 3,4-DISUBSTITUES ET COMPOSES CORRESPONDANTS

  摘要：

  公开号：

  WO2007010387A3
• 作为产物：
  描述：

  (+/-)-trans-4,5-Dimethyl-cyclohexen 生成 (R)-trans-3,4-dimethyl-cyclopentanone
  参考文献：
  名称：

  Two synthesis of optically pure (IR,2R)-1,2-dimethylcyclopentane

  摘要：

  DOI：

  10.1021/jo00924a018

文献信息

• Cyclic ketones, their preparation and their use in the synthesis of amino acids
  申请人：——

  公开号：US20030187296A1

  公开（公告）日：2003-10-02

  A method is provided for making an enantiomerically pure of the formula: in which R and R′ represent C1?C10 alkyl, C2?C10 alkenyl or C3?C10 cycloalkyl and the wedges signify (S)- or (R)-stereochemistry, the substituents in compound (II) being trans. Conjugate addition is carried out between an organometallic nucleophile that provides a group R as defined above and (R)-4-acetoxycyclopent-2-en-1-one, (S)-4-acetoxycyclopent-2-en-1-one or a similar compound in which acetoxy is replaced by another leaving group to give, e.g. in the case of the acetoxy compound, a trans 3,4-disubstituted addition product of formula III or IV; The acetyl group is eliminated from the addition product to give an (R)- or (S)-4-alkyl or 4-alkenyl cyclopent-2-en-1-one the compound of formula is then to be hydrogenated to give a cyclopentanone of formula (I) or conjugate addition of a second organometallic nucleophile that provides a group R′ as defined above to the compound of the above formula may be carried out to give a trans 3,4-disubstituted addition product of formula (II). One of the above compounds may be converted e.g. via an intermediate (XV)-(XVIII) (in which the substituents R and R′ and the wedges have the meanings indicated above) to a gabapentin analogue of one of the formulae shown below: in which the substituents R and R′ and the wedges also have the meanings indicated above. 1 2

  提供一种制备公式的对映纯物质的方法：其中R和R′代表C1-C10烷基、C2-C10烯基或C3-C10环烷基，楔形符号表示(S)-或(R)-立体化学，化合物(II)中的取代基为反式。在有机金属亲核试剂和(R)-4-乙酰氧基环戊-2-烯-1-酮、(S)-4-乙酰氧基环戊-2-烯-1-酮或类似化合物之间进行共轭加成，其中乙酰氧基被另一个离去基取代，例如在乙酰氧基化合物的情况下，得到公式III或IV的反式3,4-二取代加成产物；从加成产物中消除乙酰基，得到(R)-或(S)-4-烷基或4-烯基环戊-2-烯-1-酮，然后将该化合物氢化，得到公式(I)的环戊酮，或者对上述公式的化合物进行第二次有机金属亲核试剂的共轭加成，得到公式(II)的反式3,4-二取代加成产物。上述化合物之一可以通过中间体(XV)-(XVIII)（其中取代基R和R′以及楔形符号具有上述所示的含义）转化为下面所示的公式之一的加巴喷丁类似物：其中取代基R和R′以及楔形符号也具有上述所示的含义。
• Method of treating cartilage damage
  申请人：——

  公开号：US20020072533A1

  公开（公告）日：2002-06-13

  The invention relates to a method of preventing or treating cartilage damage by administering a GABA analog such as, for example, a compound of Formula 1 and pharmaceutically acceptable salts thereof, wherein R 1 is hydrogen or straight or branched lower alkyl, and n is an integer of from 4 to 6.

  该发明涉及通过给予类似GABA的类似物，例如Formula1的化合物及其药学上可接受的盐，来预防或治疗软骨损伤的方法，其中R1是氢或直链或支链低碳烷基，n为4至6的整数。
• Method of treating tinnitus
  申请人：——

  公开号：US20030176504A1

  公开（公告）日：2003-09-18

  The invention relates to a method of treating tinnitus by administering an alpha2delta ligand such as, for example, a compound of Formula 1 and pharmaceutically acceptable salts thereof, wherein R 1 is hydrogen or straight or branched lower alkyl, and n is an integer of from 4 to 6.

  这项发明涉及通过给予α2δ配体治疗耳鸣的方法，例如，给予一种符合化学式1的化合物及其药用盐，其中R1是氢或直链或支链低碳烷基，n为4至6的整数。
• Asymmetric induction in the cycloaddition reaction of dichloroketene with chiral enol ethers. A versatile approach to optically active cyclopentenone derivatives.
  作者：Andrew E. Greene、Florence Charbonnier

  DOI：10.1016/s0040-4039(01)80878-9

  日期：1985.1

  Significant asymmetric induction has been observed in the cycloaddition reaction of dichloroketene with chiral enol ethers. The resultant diastereomeric cyclobutanones have been converted to synthetically useful α-chlorocyclopentenones in optically active form.

  在二氯乙烯与手性烯醇醚的环加成反应中观察到明显的不对称诱导。所得非对映体环丁酮已被转化为旋光形式的合成上有用的α-氯环戊烯酮。
• APOPTOSIS INHIBITORS
  申请人：MOCHIDA PHARMACEUTICAL CO., LTD.

  公开号：EP1048640A1

  公开（公告）日：2000-11-02

  Apoptosis inhibitors containing as the active ingredient compounds represented by general formula (I) or salts thereof, wherein W1 represents -O-, -CH2-, etc.; W2 represents -CH2-, etc.; W3 represents -O-, -CH2-, etc.; X represent CH, C-, etc.; and A represents formula (α) wherein W4 represents -O-, -CH2-, etc.; W5 represents -CH2 -, etc.; and W6 represents -O-, CH2 -, etc. These apoptosis inhibitors inhibit apoptosis of WC8 cells induced by Fas ligand. In animal models, they potently inhibit the progress of fulminant hepatitis and relieve alopecia caused by anticancer agents. Because of being highly safe, these apoptosis inhibitors are usable as beneficial drugs.

  含有一般式(I)或其盐所代表的化合物作为活性成分的凋亡抑制剂，其中，W1代表-O-，-CH2-等；W2代表-CH2-等；W3代表-O-，-CH2-等；X代表CH，C-等；A代表公式(α)，其中W4代表-O-，-CH2-等；W5代表-CH2-，等；W6代表-O-，CH2-等。这些凋亡抑制剂能够抑制Fas配体诱导的WC8细胞的凋亡。在动物模型中，它们能够强烈抑制暴发性肝炎的进展并缓解由抗癌药物引起的脱发。由于具有高度的安全性，这些凋亡抑制剂可用作有益的药物。

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