五-N-乙酰基壳五糖 | 162096-56-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 五-N-乙酰基壳五糖
• 英文名称: 2-[3-(Cyclopropanecarbonyl)phenyl]-2-methylpropanoic acid
• CAS: 162096-56-2
• 化学式: C₁₄H₁₆O₃
• 分子量: 232.27
• InChiKey: FQCBEGCSNZWLKF-UHFFFAOYSA-N

物化性质

• 沸点：
  368.2±17.0 °C(Predicted)
• 密度：
  1.212±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  54.4
• 氢给体数：
  1
• 氢受体数：
  3

文献信息

• Process for Preparing Fexofenadine
  申请人：Motta Giuseppe

  公开号：US20100016599A1

  公开（公告）日：2010-01-21

  A process for preparing fexofenadine is described that includes the purification of 4-[4-chloro-1-oxobutyl]-2,2-dimethylphenyl acetic acid alkyl ester by means of suspension in a hydrocarbon, preferably n-heptane. The compound thus obtained is dissolved in a suitable solvent and condensed with azacyclanol to give the compound shown below where R is an alkyl radical, which is then hydrolysed and reduced to give fexofenadine.

  本发明提供了一种制备费索菲尼丁的方法，其中包括通过在烃中悬浮来纯化4-[4-氯-1-氧代丁基]-2,2-二甲基苯乙酸烷基酯，所述烃优选为正庚烷。然后将得到的化合物溶解在适当的溶剂中，并与氮杂环醇缩合，得到下面所示的化合物，其中R是烷基基团，然后水解和还原以得到费索菲尼丁。
• Intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives
  申请人：Aventisub II Inc.

  公开号：EP2261208A1

  公开（公告）日：2010-12-15

  The present invention is related to novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of formula (I) wherein W represents -C(=O)- or -CH(OH)-; R1 represents hydrogen or hydroxy; R2 represents hydrogen; R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R2; n is an integer of from 1 to 5; m is an integer 0 or 1; R3 is -COOH or -COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched; each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R1 and R2 are taken together to form a second bond between the carbon atoms bearing R1 and R2 or where R1 represented hydroxy, m is an integer 0.

  本发明涉及一种新型中间体和制备某些抗组胺哌啶衍生物的方法，其化学式为(I)，其中W代表-C（=O）-或-CH（OH）-；R1代表氢或羟基；R2代表氢；R1和R2一起形成连接带有R1和R2的碳原子之间的第二个键；n为1至5的整数；m为0或1的整数；R3为-COOH或-COOalkyl，其中烷基具有1至6个碳原子，是直链或支链；每个A是氢或羟基；以及其药学上可接受的盐和单一光学异构体，但当R1和R2一起形成连接带有R1和R2的碳原子之间的第二个键或当R1代表羟基时，m为0。
• Process for the preparation of antihistaminic 4-diphenylmethyl piperidine derivatives
  申请人：Aventis Inc.

  公开号：EP1953142A1

  公开（公告）日：2008-08-06

  The present invention is related to novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of formula (I) wherein W represents -C(=O)- or -CH(OH)-; R1 represents hydrogen or hydroxy; R2 represents hydrogen; R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R2; n is an integer of from 1 to 5; m is an integer 0 or 1; R3 is -COOH or -COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched; each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R1 and R2 are taken together to form a second bond between the carbon atoms bearing R1 and R2 or where R1 represented hydroxy, m is an integer 0.

  本发明涉及一种新的中间体和过程，可用于制备某些抗组胺哌啶衍生物，该衍生物的化学式为(I)，其中W代表-C(=O)-或-CH(OH)-; R1代表氢或羟基; R2代表氢; R1和R2在承载R1和R2的碳原子之间形成第二个键; n是1到5的整数; m是0或1的整数; R3是-COOH或-COOalkyl，其中烷基具有1到6个碳原子，且为直链或支链; A的每个代表氢或羟基; 以及其药学上可接受的盐和单一光学异构体，但其中当R1和R2在承载R1和R2的碳原子之间形成第二个键或R1代表羟基时，m为0。
• Novel intermediates useful for the preparation of antihistaminic piperidine derivatives
  申请人：Merrell Pharmaceuticals Inc.

  公开号：US20010018521A1

  公开（公告）日：2001-08-30

  The present invention is related to a novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of the formula 1 wherein W represents —C(═O)— or —CH(OH)—; R 1 represents hydrogen or hydroxy; R 2 represents hydrogen; R 1 and R 2 taken together form a second bond between the carbon atoms bearing R 1 and R 2 ; n is an integer of from 1 to 5; m is an integer 0 or 1; R 3 is —COOH or —COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R 1 and R 2 are ta′ to form a second bond between the carbon and R 1 and R 2 or where R 1 represented hydroxy integer 0.

  本发明涉及一种新型中间体和过程，其在制备某些抗组胺哌啶衍生物的过程中有用，该衍生物的化学式为1，其中W代表—C(═O)—或—CH(OH)—；R1代表氢或羟基；R2代表氢；R1和R2一起形成连接R1和R2的碳原子之间的第二个键；n为1至5的整数；m为0或1的整数；R3为—COOH或—COO烷基，其中烷基部分具有1至6个碳原子，是直链或支链；每个A都是氢或羟基；以及其药学上可接受的盐和各自的光学异构体，但其中当R1和R2结合形成连接R1和R2的第二个键时，或当R1代表羟基时，n为0。
• Process for the preparation of a highly pure pharmaceutical intermediate, 4-(cyclopropylcarbonyl)-alpha, alpha-dimethylphenylacetic acid
  申请人：——

  公开号：US20040077900A1

  公开（公告）日：2004-04-22

  This invention relates to a novel process to obtain highly pure 4-(cyclopropylcarbonyl) -&agr;, &agr;-dimethylphenylacetic acid of Formula I through crystallization from a mixture of para and meta regioisomers of Formula I and II in cyclohexane, whereby the amount of undesired meta isomer, 3-(cyclopropylcarbonyl)-&agr;,&agr;-dimethylphenylacetic acid of Formula 11 1 is decreased to below 0.5%. The compound of Formula I is a key intermediate for the preparation of high purity terfenadine carboxylate, which is a known antihistaminic.

  本发明涉及一种新工艺，通过在环己烷中将式 I 和式 II 的对位和间位异构体混合物结晶，得到高纯度的式 I 的 4-(环丙基羰基)-&agr;,&agr;-二甲基苯乙酸，其中不需要的间位异构体、式 11 的 3-(环丙基羰基)-&agr;,&agr;-二甲基苯乙酸的量为 1 降至 0.5%以下。式 I 的化合物是制备高纯度特非那定羧酸盐的关键中间体，特非那定羧酸盐是一种已知的抗组胺药。