S-苄基-(L)-半胱氨酸甲酯 | 22728-88-7

• 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: S-苄基-(L)-半胱氨酸甲酯
• 英文名称: S-benzylcysteine methyl ester
• 英文别名: methyl S-benzyl-L-cysteinate；S-Benzyl-L-cysteinmethylester；S-benzyl-(L)-cysteine methyl ester；methyl (2R)-2-amino-3-benzylsulfanylpropanoate
• CAS: 22728-88-7
• 化学式: C₁₁H₁₅NO₂S
• 分子量: 225.312
• InChiKey: DELQRANKBWOLJQ-JTQLQIEISA-N

物化性质

• 沸点：
  339.8±37.0 °C(Predicted)
• 密度：
  1.165±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  15
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  77.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  S-苄基-(L)-半胱氨酸甲酯 在 ruthenium trichloride 、 sodium periodate 、 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 作用下， 以 四氯化碳 、 乙腈 为溶剂， 反应 4.5h， 生成 Z-NH-CO-CO-Cys(SO2-Bzl)-OMe
  参考文献：
  名称：

  Protein Backbone Modification by Novel C.alpha.-C Side-Chain Scission

  摘要：

  alpha-Ketoamide (-NH-CO-CO-) units in intact peptides are generated from Ser/Thr residues via Ru(VIII)catalyzed C-alpha-C side-chain scission. Facets associated with this novel cu-carbon modification have been probed with 75 peptides chosen to represent every possible peptide environment. The reactions were carried out at room temperature with in situ generated Ru(VIII) in biphasic (CH3CN/CCl4/pH 3 phosphate buffer, 1:1:2 v/v) medium. Whereas Ser/Thr residues placed at the C-terminal end in peptides undergo N-C bond scission leading to des-Ser/Thr peptide amides-thus acting as Gly equivalents in simulating the alpha-amidating action of pituitary enzymes-those located at the N-terminal or nonterminal or even at the C-terminal position (protected as amide) were found to undergo oxidative C-C bond scission (involving C-alpha and C side-chain bond), resulting in the generation of alpha-ketoamide (-NH-CO-CO-) units in the intact peptide backbone. The difference in the products arising from C-alpha-C side-chain scission of Ser/Thr esters and amides is rationalized on the basis of a common mechanism involving either oxaloesters [Pep-NH-CO-COX; X = OMe] or oxalamides [X = NH2 or NH-Pep] arising from the oxidation of initially formed carbinolamide intermediates [Pep-NH-CH(OH)-COX],wherein, while the former are shown to undergo hydrolysis to terminal amides [Pep-NH2], the oxalamides are found to be stable to hydrolysis. Ancillary noteworthy findings are those of peptide bond scission when contiguous Ser-Ser/Thr-Thr residues are present and the oxidative cleavage at C-terminal Tyr/Trp sites generating des amides. The oxidative methodology presented here is mild, simple, and practical and proceeds with chiral retention. The insensitivity of a large number of amino acid residues, such as Gly, Ala, Leu, Asn, Gln, Asp, Glu, Pro, Arg, Phe, Lys, Val, and Aib, and N-protecting groups, such as Boc, Z, and Bz, toward Ru(VIII) under the experimental conditions should make this methodology practical and useful. Sulfur-containing amino acids Cys and Met get oxidized to sulfones in the products.

  DOI：

  10.1021/ja00094a008
• 作为产物：
  描述：

  S-苄基-L-半胱氨酸 在 甲醇 、 氯化亚砜 作用下， 生成 S-苄基-(L)-半胱氨酸甲酯
  参考文献：
  名称：

  新催产素合酶

  摘要：

  描述了催产素的新合成。使N-CBO-L-谷氨酰胺基-L-天冬酰胺基-S-苄基-L-半胱氨酰叠氮化物与L-脯氨酰基-L-亮氨酰-甘氨酰胺反应，得到N-CBO-L-谷氨酰胺基-L-天冬酰胺基-S-苄基-L-半胱氨酰基-L-脯氨酰基-L-亮氨酰-甘氨酰胺。用乙酸中的HBr除去CBO基团后，该六肽与N-CBO-S-苄基-L-半胱氨酰-L-酪氨酰基-L-异亮氨酰-叠氮基缩合，得到九肽N-CBO-S-苄基-L杜维格诺和同事已经通过另一途径获得的-半胱氨酰-L-酪氨酰基-L-异亮氨酰-L-谷氨酰胺基-L-天冬酰胺基-S-苄基-L-半胱氨酰-L-脯氨酰基-L-亮氨酰-甘氨酰胺。用液态氨中的钠还原并再氧化，即可获得生物活性物质。

  DOI：

  10.1002/hlca.19550380622

文献信息

• Cycloalkylcarbonylamino Acid Ester Derivative and Process for Producing The Same
  申请人：Kobayashi Nobuo

  公开号：US20090137799A1

  公开（公告）日：2009-05-28

  Cycloalkylcarbonylamino acid ester derivatives, which are raw material intermediates for a novel cycloalkane carboxamide derivative having an action that selectively inhibits cathepsin K, and a production process thereof, are provided. A cycloalkylcarbonylamino acid ester derivative represented by formula (I), or a pharmaceutically acceptable salt thereof: (wherein, R 1 and R 2 represent alkyl groups, alkenyl groups, alkynyl groups, aromatic hydrocarbon groups, heterocyclic groups, etc., R 8 represents an alkyl group having 1 to 6 carbon atoms, and ring A represents a cyclic alkylidene group having 5, 6 or 7 carbon atoms).

  环烷基羰基氨基酸酯衍生物是一种新型环烷烃羧酰胺衍生物的原料中间体，具有选择性抑制卡特普辛K的作用，提供其生产工艺。 表示为式（I）的环烷基羰基氨基酸酯衍生物，或其药学上可接受的盐： （其中，R1和R2代表烷基、烯基、炔基、芳香烃基、杂环基等，R8代表具有1至6个碳原子的烷基，环A代表具有5、6或7个碳原子的环烷基亚基）。
• Substituted 2-arylimino heterocycles and compositions containing them, for use as progesterone receptor binding agents
  申请人：Bayer Corporation

  公开号：US06353006B1

  公开（公告）日：2002-03-05

  This invention relates to 2-arylimino heterocycles, including 2-arylimino-1,3-thiazolidines, 2-arylimino-2,3,4,5-tetrahydro-1,3-thiazines, 2-arylimino-1,3-thiazolidin-4-ones, 2-arylimino-1,3-thiazolidin-5-ones, and 2-arylimino-1,3-oxazolidines, and their use in modulating progesterone receptor mediated processes, and pharmaceutical compositions for use in such therapies.

  这项发明涉及2-芳基亚胺杂环化合物，包括2-芳基亚胺-1,3-噻唑啉、2-芳基亚胺-2,3,4,5-四氢-1,3-噻嗪、2-芳基亚胺-1,3-噻唑啉-4-酮、2-芳基亚胺-1,3-噻唑啉-5-酮和2-芳基亚胺-1,3-噁唑啉，以及它们在调节孕激素受体介导的过程中的应用，以及用于这类治疗的药物组合物。
• Indole compound
  申请人：Yasuma Tsuneo

  公开号：US20080096877A1

  公开（公告）日：2008-04-24

  The purpose of the present invention is to provide a glucokinase activator useful as a pharmaceutical agent such as an agent for the prophylaxis or treatment of diabetes, obesity and the like. The present invention provides a glucokinase activator containing a compound represented by the formula (I): wherein R 1 is a hydrogen atom or a halogen atom; R 2 is a group represented by wherein each symbol is defined in the specification, or a salt thereof or a prodrug thereof.

  本发明的目的是提供一种作为药物剂如用于预防或治疗糖尿病、肥胖等的葡萄糖激酶激活剂有用的葡萄糖激酶激活剂。 本发明提供了一种包含由公式（I）表示的化合物的葡萄糖激酶激活剂： 其中 R1 是氢原子或卤素原子； R2 是由表示的组 其中每个符号在说明书中定义，或其盐或前药。
• De-Novo Designed Library of Benzoylureas as Inhibitors of BCL-X_L: Synthesis, Structural and Biochemical Characterization
  作者：Ryan M. Brady、Amelia Vom、Michael J. Roy、Nathan Toovey、Brian J. Smith、Rebecca M. Moss、Effie Hatzis、David C. S. Huang、John P. Parisot、Hong Yang、Ian P. Street、Peter M. Colman、Peter E. Czabotar、Jonathan B. Baell、Guillaume Lessene

  DOI：10.1021/jm401948b

  日期：2014.2.27

  present our approach based on de novo structure-based drug design. Using known structural information from complexes engaging opposing members of the BCL-2 family of proteins, we designed peptidomimetic compounds using a benzoylurea scaffold to reproduce key interactions between these proteins. A library stemming from the initial de novo designed scaffold led to the discovery of ligands with low micromolar

  存活的BCL-2蛋白对于药物化学家而言是有吸引力的但具有挑战性的靶标。它们参与了许多（如果不是全部）肿瘤的发生和发展，使其成为开发新的抗癌疗法的主要靶标。我们介绍了基于从头结构的药物设计方法。利用来自参与BCL-2蛋白质家族相对成员的复合物的已知结构信息，我们使用苯甲酰脲支架设计了拟肽化合物，以再现这些蛋白质之间的关键相互作用。从初始从头词干的文库设计的支架导致与低微摩尔效力（配位体的发现ķ d = 4μM）和选择性BCL-X大号。这些化合物以不同于先前已知的BCL-2抑制剂的结合方式在规范的BH3结合槽中结合。我们的研究结果为针对具有挑战性的蛋白质-蛋白质相互作用类的新型拮抗剂的设计提供了见识。
• Deprotection/reprotection of the amino group in α-amino acids and peptides. A one-pot procedure in [Bmim][BF₄] ionic liquid
  作者：M. L. Di Gioia、A. Barattucci、P. Bonaccorsi、A. Leggio、L. Minuti、E. Romio、A. Temperini、C. Siciliano

  DOI：10.1039/c3ra46599c

  日期：——

  of the α-amino group in α-amino acid and dipeptide methyl esters. [Bmim][BF4] is used as the solvent in the entire process. In particular, the use of the ionic liquid allows for rapid and clean removal of the 4-nitrobenzenesulfonyl (nosyl) group and for facile subsequent tert-butyloxycarbonylation of the free α-amino function under very mild conditions. N-Boc-α-amino acid as well as peptide derivatives

  本文提出了一种有效的一锅法，用于依次对α-氨基酸和二肽甲酯中的α-氨基进行脱保护/再保护。在整个过程中，[Bmim] [BF 4 ]被用作溶剂。特别地，离子液体的使用允许在非常温和的条件下快速和干净地除去4-硝基苯磺酰基（nosyl）基团，并且随后易于进行游离α-氨基官能团的叔丁氧基羰基化。分离N -Boc-α-氨基酸以及肽衍生物的产率很高，不需要进一步纯化。在此过程中，前体的绝对构型被完全保留。