2,4-二羟基-3,3,4-三甲基-5-氧代吡咯烷-2-羧酸 | 143785-44-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: 2,4-二羟基-3,3,4-三甲基-5-氧代吡咯烷-2-羧酸
• 英文名称: 2,4-Dihydroxy-3,3,4-trimethylpyroglutamic acid
• 英文别名: 2,4-dihydroxy-3,3,4-trimethyl-5-oxopyrrolidine-2-carboxylic acid
• CAS: 143785-44-8
• 化学式: C₈H₁₃NO₅
• 分子量: 203.195
• InChiKey: IZJMYWFXWVNTSR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.1
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  107
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2-Amino-4-hydroxy-3,3,4-trimethyl-5-oxo-tetrahydro-furan-2-carboxylic acid 在 sodium hydroxide 作用下， 反应 1.0h， 生成 2,4-二羟基-3,3,4-三甲基-5-氧代吡咯烷-2-羧酸
  参考文献：
  名称：

  Occurrence of 2,4-dihydroxy-3,3,4-trimethylpyroglutamic acid as an N-acyl substituent in the O-polysaccharide chain of the lipopolysaccharide of Vibrio anguillarum V-123

  摘要：

  A new and highly branched amino acid was found as an N-acyl substituent of the O-polysaccharide chain obtained from the lipopolysaccharide of Vibrio anguillarum V-123 (serogroup JO-2) and evidence is presented to support the structure as 2,4-dihydroxy-3,3,4-trimethylpyroglutamic acid. Acid hydrolysis of the O-polysaccharide gave the lactone of 2,4-dihydroxy-3,3,4-trimethylglutamic acid, together with 2-amino-2-deoxy-D-galacturonic acid, 2-amino-2,6-dideoxy-D-glucose (D-quinovosamine), and 4-amino-4,6-dideoxy-D-glucose (D-viosamine). Degradation of the O-polysaccharide with hydrogen fluoride yielded a fragment (H1) that was indicated by the H-1-NMR data to be 4-amino-4,6-dideoxy-D-glucose N-acetylated with 2,4-dihydroxy-3,3,4-trimethylpyroglutamic acid. The configuration of the amino acid was not determined.

  DOI：

  10.1016/0008-6215(92)84015-k

文献信息

• Processes and host cells for genome, pathway, and biomolecular engineering
  申请人：enEvolv, Inc.

  公开号：US10370654B2

  公开（公告）日：2019-08-06

  The present disclosure provides compositions and methods for genomic engineering.

  本公开提供了基因组工程的组合物和方法。
• PROCESSES AND HOST CELLS FOR GENOME, PATHWAY, AND BIOMOLECULAR ENGINEERING
  申请人：ENEVOLV, INC.

  公开号：US20160186168A1

  公开（公告）日：2016-06-30

  The present disclosure provides compositions and methods for genomic engineering.
• US9944925B2
  申请人：——

  公开号：US9944925B2

  公开（公告）日：2018-04-17
• Occurrence of 2,4-dihydroxy-3,3,4-trimethylpyroglutamic acid as an N-acyl substituent in the O-polysaccharide chain of the lipopolysaccharide of Vibrio anguillarum V-123
  作者：Hiroaki Eguchi、Shunji Kaya、Yoshio Araki

  DOI：10.1016/0008-6215(92)84015-k

  日期：1992.7

  A new and highly branched amino acid was found as an N-acyl substituent of the O-polysaccharide chain obtained from the lipopolysaccharide of Vibrio anguillarum V-123 (serogroup JO-2) and evidence is presented to support the structure as 2,4-dihydroxy-3,3,4-trimethylpyroglutamic acid. Acid hydrolysis of the O-polysaccharide gave the lactone of 2,4-dihydroxy-3,3,4-trimethylglutamic acid, together with 2-amino-2-deoxy-D-galacturonic acid, 2-amino-2,6-dideoxy-D-glucose (D-quinovosamine), and 4-amino-4,6-dideoxy-D-glucose (D-viosamine). Degradation of the O-polysaccharide with hydrogen fluoride yielded a fragment (H1) that was indicated by the H-1-NMR data to be 4-amino-4,6-dideoxy-D-glucose N-acetylated with 2,4-dihydroxy-3,3,4-trimethylpyroglutamic acid. The configuration of the amino acid was not determined.