2-(2-Hydroxyethyl)pentanoic acid | 905716-52-1

• 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-(2-Hydroxyethyl)pentanoic acid
• CAS: 905716-52-1
• 化学式: C₇H₁₄O₃
• 分子量: 146.18
• InChiKey: FHVOOVXMQQSWHV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  10
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  57.5
• 氢给体数：
  2
• 氢受体数：
  3

文献信息

• Process for producing polymerizable polybranched polyester
  申请人：Hayakawa Hitoshi

  公开号：US20060047140A1

  公开（公告）日：2006-03-02

  The present invention allows the production of a polymerizable hyperbranched polyester by introducing polymerizable unsaturated double bonds into the molecular terminals of a hyperbranched polyester polyol (A), which is obtained by condensation polymerization a polyhydroxy monocarboxylic acid in which there are at least two hydroxyl groups, the carbon atom adjacent to the carboxy group is saturated carbon atom, and the hydrogen atoms on said carbon atom are all substituted, by reacting the hyperbranched polyester polyol (A) and an alkyl ester of a carboxylic acid having a polymerizable unsaturated double bond (B) by a transesterification in the presence of at least one type of transesterification catalyst (C) selected from the group consisting of a dialkyl tin oxide and a stanoxane, without causing side reactions such as nucleophilic addition reactions of terminal hydroxyl groups to polymerizable unsaturated double bonds of the hyperbranched polyester polyol (A), or thermal polymerization of the polymerizable unsaturated double bonds. The polymerizable hyperbranched polyester can be produced at high efficiency using a transesterification that uses as an alkyl ester of a carboxylic acid having a polymerizable unsaturated double bond (B), which is easily obtained as an industrial raw material, and without altering the original backbone structure of the molecular chains of the hyperbranched polyester polyol (A) by hydrolysis and so forth.

  本发明通过在超支化聚酯多元醇（A）的分子端引入可聚合不饱和双键，从而允许生产可聚合的超支化聚酯。超支化聚酯多元醇（A）是通过缩聚至少含有两个羟基的聚羟基一元羧酸（羧基相邻的碳原子是饱和碳原子，该碳原子上的氢原子均被取代）而获得的。在至少一种转酯化催化剂（C）的存在下，通过将超支化聚酯多元醇（A）和具有可聚合不饱和双键的羧酸烷基酯（B）进行酯交换反应，而不引起末端羟基对超支化聚酯多元醇（A）的可聚合不饱和双键的亲核加成反应或热聚合反应等副反应，就可以高效地生产可聚合的超支化聚酯。使用作为工业原料易于获得的具有可聚合不饱和双键的羧酸烷基酯（B）进行酯交换反应，无需通过水解等改变超支化聚酯多元醇（A）的分子链的原始骨架结构。
• NOVEL CYCLOSPORIN DERIVATIVES AND USES THEREOF
  申请人：SU Zhengyu

  公开号：US20160039879A1

  公开（公告）日：2016-02-11

  The present invention relates to a compound of the Formula (I)): or pharmaceutically acceptable salt thereof, wherein the symbols are as defined in the specification; a pharmaceutical composition comprising the same, a method for treating or preventing viral infections, inflammation, dry eye, central nervous disorders, cardiovascular diseases, cancer, obesity, diabetes, muscular dystrophy, and hair loss.

  本发明涉及公式（I）的化合物或其药学上可接受的盐，其中符号如规范中定义；包括该化合物的制药组合物，一种用于治疗或预防病毒感染、炎症、干眼症、中枢神经系统疾病、心血管疾病、癌症、肥胖症、糖尿病、肌肉萎缩症和脱发的方法。
• PROCESS FOR PRODUCING POLYMERIZABLE POLYBRANCHED POLYESTER
  申请人：DAINIPPON INK AND CHEMICALS, INC.

  公开号：EP1582548A1

  公开（公告）日：2005-10-05

  The present invention allows the production of a polymerizable hyperbranched polyester by introducing polymerizable unsaturated double bonds into the molecular terminals of a hyperbranched polyester polyol (A), which is obtained by condensation polymerization a polyhydroxy monocarboxylic acid in which there are at least two hydroxyl groups, the carbon atom adjacent to the carboxy group is saturated carbon atom, and the hydrogen atoms on said carbon atom are all substituted, by reacting the hyperbranched polyester polyol (A) and an alkyl ester of a carboxylic acid having a polymerizable unsaturated double bond (B) by a transesterification in the presence of at least one type of transesterification catalyst (C) selected from the group consisting of a dialkyl tin oxide and a stanoxane, without causing side reactions such as nucleophilic addition reactions of terminal hydroxyl groups to polymerizable unsaturated double bonds of the hyperbranched polyester polyol (A), or thermal polymerization of the polymerizable unsaturated double bonds. The polymerizable hyperbranched polyester can be produced at high efficiency using a transesterification that uses as an alkyl ester of a carboxylic acid having a polymerizable unsaturated double bond (B), which is easily obtained as an industrial raw material, and without altering the original backbone structure of the molecular chains of the hyperbranched polyester polyol (A) by hydrolysis and so forth.

  本发明通过在超支化聚酯多元醇（A）的分子末端引入可聚合的不饱和双键来生产可聚合的超支化聚酯，超支化聚酯多元醇（A）是通过缩合聚合多羟基一羧酸得到的，其中至少有两个羟基，与羧基相邻的碳原子是饱和碳原子，并且所述碳原子上的氢原子全部被取代、将超支化聚酯多元醇（A）和具有可聚合不饱和双键的羧酸烷基酯（B）在至少一种酯交换催化剂（C）（选自二烷基氧化锡和链烷氧基）的存在下进行酯交换反应、不引起副反应，如端羟基与超支化聚酯多元醇（A）的可聚合不饱和双键的亲核加成反应，或可聚合不饱和双键的热聚合反应。使用具有可聚合不饱和双键（B）的羧酸烷基酯进行酯交换反应，可高效生产可聚合超支化聚酯，该烷基酯可作为工业原料轻松获得，且不会通过水解等方式改变超支化聚酯多元醇（A）分子链的原始骨架结构。
• Polyketide synthase encoded by a methymycin/pikromycin biosynthetic gene cluster
  申请人：Regents of the University of Minnesota

  公开号：US20020110897A1

  公开（公告）日：2002-08-15

  A novel pathway for the synthesis of polyhydroxyalkanoates is provided. A method of synthesizing a recombinant polyhydroxyalkanoate monomer synthase is also provided. These recombinant polyhydroxyalkanoate synthases are derived from multifunctional fatty acid synthases or polyketide synthases and generate hydroxyacyl acids capable of polymerization by a polyhydroxyalkanoate synthase. Also provided is a biosynthetic gene cluster for methymycin and pikomycin as well as a biosynthetic gene cluster for desosamine.

  提供了一种合成聚羟基烷酸酯的新途径。还提供了一种合成重组多羟基烷酸单体合酶的方法。这些重组聚羟基烷酸单体合成酶来源于多功能脂肪酸合成酶或聚酮酸合成酶，生成的羟基酰基酸能够被聚羟基烷酸单体合成酶聚合。此外，还提供了甲基霉素和匹考霉素的生物合成基因簇，以及去甲沙明的生物合成基因簇。
• DNA encoding methymycin and pikromycin
  申请人：Regents of the University of Minnesota

  公开号：US20020164742A1

  公开（公告）日：2002-11-07

  A novel pathway for the synthesis of polyhydroxyalkanoates is provided. A method of synthesizing a recombinant polyhydroxyalkanoate monomer synthase is also provided. These recombinant polyhydroxyalkanoate synthases are derived from multifunctional fatty acid synthases or polyketide synthases and generate hydroxyacyl acids capable of polymerization by a polyhydroxyalkanoate synthase. Also provided is a biosynthetic gene cluster for methymycin and pikomycin as well as a biosynthetic gene cluster for desosamine.

  提供了一种合成聚羟基烷酸酯的新途径。还提供了一种合成重组多羟基烷酸单体合酶的方法。这些重组聚羟基烷酸单体合成酶来源于多功能脂肪酸合成酶或聚酮酸合成酶，生成的羟基酰基酸能够被聚羟基烷酸单体合成酶聚合。此外，还提供了甲基霉素和匹考霉素的生物合成基因簇，以及去甲沙明的生物合成基因簇。