2,3-Dimethylbut-2-enedioic acid | 21788-49-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2,3-Dimethylbut-2-enedioic acid
• CAS: 21788-49-8
• 化学式: C₆H₈O₄
• 分子量: 144.127
• InChiKey: CGBYBGVMDAPUIH-UHFFFAOYSA-N

物化性质

• 熔点：
  240-241 °C
• 沸点：
  340.4±25.0 °C(Predicted)
• 密度：
  1.309±0.06 g/cm3(Predicted)
• 稳定性/保质期：

  存在于白肋烟烟叶中。

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 危险性防范说明：
  P264,P270,P301+P312,P330,P501
• 危险性描述：
  H302

制备方法与用途

合成制备方法

1. 烟草：BU，56。

反应信息

• 作为反应物：
  描述：

  2,3-Dimethylbut-2-enedioic acid 在 氢气 作用下， 以 乙醇 为溶剂， 生成 (3aS,7aS)-3a,7a-dimethyl-4,5,6,7-tetrahydro-3H-2-benzofuran-1-one
  参考文献：
  名称：

  [EN] RECYCLABLE POLYMERS BASED ON RING-FUSED GAMMA-BUTYROLACTONES
  [FR] POLYMÈRES RECYCLABLES SUR LA BASE DE GAMMA-BUTYROLACTONES À CYCLES CONDENSÉS

  摘要：

  本发明揭示了一类新型聚合物，即转环融合的聚(4-羟基丁酸酯) (RF-P4HB)，具有一系列独特性质，包括优良的热稳定性和机械强度，通过热解和/或化学催化定量回收为构建单体的便利性，以及在常温常压下通过化学环开聚合方便地生产。另一个独特性质是通过立体共结晶协同结晶混合两个对映异构体 RF-P4HB 链形成具有高熔点的结晶立体复合聚合物。该发明还提供了相应的环融合内酯单体结构，可通过将环转移至母体 γ-丁内酯环来合成 RF-P4HB 聚合物。此外，还揭示了一种用于合成 RF-P4HB 聚合物和共聚物的聚合或共聚过程。

  公开号：

  WO2020027845A1

文献信息

• [EN] DISUBSTITUTED MALEIC ANHYDRIDES WITH ALTERED KINETICS OF RING CLOSURE<br/>[FR] ANHYDRIDES MALÉIQUES DISUBSTITUÉS AYANT UNE CINÉTIQUE MODIFIÉ DE FERMETURE DE CYCLE
  申请人：ARROWHEAD MADISON INC

  公开号：WO2012173784A1

  公开（公告）日：2012-12-20

  We describe anhydride compounds suitable for physiologically labile modification of amine- containing molecules. The described anhydrides form reversible linkages having desirable kinetics for in vivo delivery of biologically active molecules. Also described are endosomolytic polymers formed by modification of membrane active polyamines with the described anhydrides.

  我们描述了适用于生理易降解修饰胺基含有分子的酐化合物。所述的酐形成可逆连接，具有适合体内传递生物活性分子的理想动力学特性。还描述了通过修饰膜活性多胺与所述酐化合物形成的内体溶解聚合物。
• [EN] FUMARATE ANALOGS AND USES THEREOF IN THE TREATMENT OF AN AUTOIMMUNE DISEASE OR AN INFLAMMATORY DISEASE<br/>[FR] ANALOGUES DE FUMARATE ET LEURS UTILISATIONS DANS LE TRAITEMENT D'UNE MALADIE AUTO-IMMUNE OU D'UNE MALADIE INFLAMMATOIRE
  申请人：RIGEL PHARMACEUTICALS INC

  公开号：WO2016022434A1

  公开（公告）日：2016-02-11

  Aspects of the present disclosure include compounds of formula (A) that find use for the treatment of a variety of autoimmune and inflammatory diseases and disorders. Embodiments of the present disclosure also relate to pharmaceutical compositions that include these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes. Formula (A).

  本公开涉及的方案包括式（A）的化合物，该化合物可用于治疗各种自身免疫性和炎症性疾病和疾病。本公开的实施例还涉及包括这些化合物的药物组合物，使用这些化合物治疗各种疾病和疾病的方法，制备这些化合物的过程以及在这些过程中有用的中间体。方案（A）。
• [EN] (AZA)INDOLE-, BENZOTHIOPHENE-, AND BENZOFURAN-3-SULFONAMIDES<br/>[FR] (AZA)INDOLE, BENZOTHIOPHÈNE ET BENZOFURAN-3-SULFONAMIDES
  申请人：UCB PHARMA GMBH

  公开号：WO2018122232A1

  公开（公告）日：2018-07-05

  Disclosed are sulfonamide compounds with GPR17 modulating properties, which are useful for treating or preventing a variety of CNS and other diseases, in particular for preventing and treating myelinating diseases or disorders.

  揭示了具有GPR17调节特性的磺胺类化合物，可用于治疗或预防各种中枢神经系统和其他疾病，特别是用于预防和治疗髓鞘疾病或紊乱。
• SUBSTITUTED OR UNSUBSTITUTED ALLYL GROUP-CONTAINING MALEIMIDE COMPOUND, PRODUCTION METHOD THEREFOR, AND COMPOSITION AND CURED PRODUCT USING SAID COMPOUND
  申请人：DIC CORPORATION

  公开号：US20200325101A1

  公开（公告）日：2020-10-15

  Bismaleimides (BMI) exhibit excellent heat resistance (high Tg and high resistance to thermal decomposition) compared to epoxy resins and phenolic resins, and therefore, in recent years, more attention is paid to bismaleimides as a resin material for the next-generation devices represented by SiC power semiconductors, in addition to the investigation on the use of bismaleimides for electronic material applications. As such, conventional BMI's are known as highly heat-resistant resins; however, there is a demand for a resin having higher heat resistance for advanced material applications and the like. Thus, an object of the invention is to provide a novel maleimide compound having superior heat resistance. Disclosed is a substituted or unsubstituted allyl group-containing maleimide compound having a structure with three or more benzene rings, having one or more groups each having a substituted or unsubstituted allyl group, and having one or more maleimide groups.

  亚苯基马来酰亚胺化合物，具有三个或更多苯环的结构，含有一个或多个取代或未取代的烯丙基团，以及一个或多个马来酰亚胺基团，具有卓越的耐热性。
• SUBSTITUTED PYRAZOLOPYRIMIDINES AS IRAK4 INHIBITORS
  申请人：Bayer AG

  公开号：EP3800188A1

  公开（公告）日：2021-04-07

  The present application relates to novel pyrazolopyrimidine derivatives for treatment and/or prophylaxis of diseases and to the use thereof for production of medicaments for treatment and/or prophylaxis of diseases in humans and in animals, especially of proliferative disorders, autoimmune disorders, metabolic and inflammatory disorders characterized by an overreacting immune system, in particular rheumatological disorders, inflammatory skin disorders, cardiovascular disorders, lung disorders, eye disorders, neurological disorders, pain disorders and cancer, in human as well as of allergic and/or inflammatory diseases in animals, especially of atopic dermatitis and/or Flea Allergy Dermatitis, and especially in domestic animals, particularly in dogs.

  本申请涉及用于治疗和/或预防疾病的新的吡唑并嘧啶衍生物，以及将它们用于生产用于治疗和/或预防人类和动物疾病的药物，尤其是增殖性疾病、自身免疫性疾病、代谢和炎症性疾病，这些疾病的特点是免疫系统过度反应，特别是风湿性疾病、炎症性皮肤病、心血管疾病、肺部疾病、眼病、神经系统疾病、疼痛疾病和癌症，在人类中，以及动物的过敏性/或炎症性疾病，特别是异位性皮炎和/或跳蚤过敏性皮炎，尤其是在家养动物中，特别是在狗中。