N-benzoyl-(S)-4-methylphenylalanine

• 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
• 英文名称: N-benzoyl-(S)-4-methylphenylalanine
• 英文别名: (2S)-2-benzamido-3-(4-methylphenyl)propanoic acid
• 化学式: C₁₇H₁₇NO₃
• 分子量: 283.327
• InChiKey: MXGOHDJVYSIDRO-HNNXBMFYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  66.4
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  N-benzoyl-(S)-4-methylphenylalanine 在 C₃₈H₄₀ClN₂O₃RhS 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 1.17h， 生成 N-((2S,3R)-4-chloro-3-hydroxy-1-(p-tolyl)butan-2-yl)benzamide
  参考文献：
  名称：

  Rh（iii）催化的非对映选择性转移氢化：有效进入HIV蛋白酶抑制剂的关键中间体。

  摘要：

  开发了一种由束缚的铑配合物催化的α-氨基烷基α'-氯甲基酮的高效非对映选择性转移加氢反应，并成功地用于HIV蛋白酶抑制剂关键中间体的合成中。使用当前的Rh（iii）催化剂系统，可以以优异的收率和非对映选择性（最高99％收率，最高99：1 dr）生产一系列手性3-氨基-1-氯-2-羟基-4-苯基丁烷。通过使用Rh（iii）催化剂的两种对映异构体，可以有效地获得所需产物的两种非对映异构体。

  DOI：

  10.1039/c9cc09793g
• 作为产物：
  描述：

  N-苯甲酰基-(R,S)-4-甲基苯丙氨酸甲酯 在 sodium hydroxide 作用下， 以 水 为溶剂， 以12.8%的产率得到N-benzoyl-(S)-4-methylphenylalanine
  参考文献：
  名称：

  Tyagi, O D; Boll, P M; Parmar, V S, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 12, p. 851 - 854

  摘要：

  DOI：

文献信息

• Enzymic asymmetric synthesis of .alpha.-amino acids. Enantioselective cleavage of 4-substituted oxazolin-5-ones and thiazolin-5-ones
  作者：Joyce Z. Crich、Rosario Brieva、Peer Marquart、Rui Lin Gu、Steffen Flemming、Charles J. Sih

  DOI：10.1021/jo00064a010

  日期：1993.6

  A general enzymatic asymmetric synthesis of L-alpha-amino acids has been developed. This method entails the use of the Pseudomonas cepacia lipase (P-30) to catalyze the enantioselective methanolysis of a variety of 4-substituted 2-phenyloxazolin-5-one derivatives in a nonpolar organic solvent to furnish optically-active N-benzoyl-L-alpha-amino acid methyl esters (ee = 66-98%), which in turn is subjected to a protease-catalyzed kinetic resolution yielding enantiomerically-pure N-benzoyl-L-alpha-amino acids. This synergistic coupling of two enzymes allows the ready preparation of L-alpha-amino acids of high enantiopurity in yields greater than 50%, an inherent advantage over conventional resolution procedures. Two proteases were found to catalyze the enantioselective hydrolysis of a variety of 4-substituted 2-phenylthiazolin-5-one derivatives to give N-(thiobenzoyl)-L-alpha-amino acids of high optical purity.
• Unusual amino acids III. Asymmetric synthesis of 3-arylalanines
  作者：Stefan Taudien、Klaus Schinkowski、Hans-Walter Krause

  DOI：10.1016/s0957-4166(00)86017-6

  日期：1993.1

  21 (Z)-alpha-N-benzoylamino-beta-arylacrylic acids and their esters were prepared by known procedures and hydrogenated to the corresponding optically active alpha-benzoyl-beta-arylalanine derivatives with optical yields in the range of 82-95% ee using the cationic rhodium complex of ''PROPRAPHOS'' as the chiral catalyst No electronical influences of the substituents at the aryl moiety on the enantioselectivity were observed but a sterical one, proved by X-ray crystallographic analysis and computer-aided modellings. Deacylation of the hydrogenated spezies produced the hydrochlorides of the 3-arylalanines attended by a partial racemisation In this case the hydrogenation of urethane type protected dehydroaminoacid derivatives seems to be the alternative.
• FLUORESCENT PROBE FOR HIGH-SENSITIVITY PANCREATIC FLUID DETECTION, AND METHOD FOR DETECTING PANCREATIC FLUID
  申请人：THE UNIVERSITY OF TOKYO

  公开号：US20150152469A1

  公开（公告）日：2015-06-04

  [Problem] To provide a fluorescent probe capable of rapidly detecting and imaging with high sensitivity the presence of leakage of pancreatic fluid during or after surgery, and to furthermore provide a detection method and detection kit that use the fluorescent probe. [Solution] A fluorescent probe for detecting pancreatic fluid containing a compound or salt thereof represented by formula (I) below. (In the formula, A represents an amino acid residue or N-substituted amino acid residue, with A forming an amide bond with the adjacent NH in the formula; R 1 represents a hydrogen atom or 1 to 4 same or different substituent groups that bond with a benzene ring; R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 each independently represent a hydrogen atom, a hydroxyl group, an alkyl group, or a halogen atom; R 8 and R 9 each independently represent a hydrogen atom or an alkyl group; and X represents a C 1 -C 3 alkylene group.)
• US9506102B2
  申请人：——

  公开号：US9506102B2

  公开（公告）日：2016-11-29
• Tyagi, O D; Boll, P M; Parmar, V S, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 12, p. 851 - 854
  作者：Tyagi, O D、Boll, P M、Parmar, V S、Taneja, Poonam、Singh, S K

  DOI：——

  日期：——