ethyl (2S,3S)-2-(p-methoxyphenylamino)-3-methyl-4-oxo-hexanoate | 409113-03-7

• 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
• 英文名称: ethyl (2S,3S)-2-(p-methoxyphenylamino)-3-methyl-4-oxo-hexanoate
• 英文别名: ethyl (2S,3S)-2-(4-methoxyanilino)-3-methyl-4-oxohexanoate
• CAS: 409113-03-7
• 化学式: C₁₆H₂₃NO₄
• 分子量: 293.363
• InChiKey: AGVCIAKDKNOFTN-ABAIWWIYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  21
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  ethyl (2S,3S)-2-(p-methoxyphenylamino)-3-methyl-4-oxo-hexanoate 在 1,5-二氮杂双环[4.3.0]壬-5-烯 作用下， 以60%的产率得到ethyl (2S,3R)-2-(p-methoxyphenylamino)-3-methyl-4-oxohexanoate
  参考文献：
  名称：

  Compounds and compositions for use in the prevention and treatment of obesity and related syndromes

  摘要：

  本发明涉及4-羟基异亮氨酸、其同分异构体、类似物、内酯、盐和前药，以及它们的制备过程，以及包含它们的药物组合物。更具体地说，本发明涉及这些化合物在预防和治疗肥胖及相关综合症中的用途。

  公开号：

  US20060223884A1
• 作为产物：
  描述：

  Acetic acid, [(4-methoxyphenyl)imino]-, ethyl ester, (2E)- 在 (R)-吡咯烷-3-羧酸 咪唑 作用下， 以 氘代氯仿 、 异丙醇 为溶剂， 反应 186.0h， 生成 ethyl (2S,3S)-2-(p-methoxyphenylamino)-3-methyl-4-oxo-hexanoate
  参考文献：
  名称：

  3-Pyrrolidinecarboxylic Acid for Direct Catalytic Asymmetric anti-Mannich-Type Reactions of Unmodified Ketones

  摘要：

  We report the development of direct catalytic, enantioselective, anti-selective Mannich-type reactions between unmodified ketones and alpha-imino esters under mild conditions. The reactions were performed using 5-10 mol % of (R)-3-pyrrolidinecarboxylic or (R)-beta-proline as catalyst in an environmentally benign solvent, 2-PrOH, at room temperature. The anti-Mannich products were obtained in good yields with high diastereo- and enantioselectivities (up to anti/syn >99:1, 99% ee). While (3R,5R)-5-methyl-3-pyrrolidinecarboxylic acid is an excellent catalyst for the anti-Mannich-type reactions of aldehydes, it did not efficiently catalyze the corresponding Mannich-type reactions of ketones; (R)-3-pyrrolidinecarboxylic acid did efficiently catalyze the Mannich-type reactions of ketones. (S)-Proline or (S)-2-pyrrolidinecarboxylic acid has been reported to catalyze the Mannich-type reactions of ketones to afford the syn-products. Thus, the position of the carboxylic acid group on the pyrrolidine ring directs the stereoselection of the catalyzed reaction, providing either syn- or anti-Mannich products.

  DOI：

  10.1021/ja062950b

文献信息

• TRANS-3,5-DISUBSTITUTEDPYRROLIDINE: ORGANOCATALYST FOR anti-MANNICH REACTIONS
  申请人：Tanaka Fujie

  公开号：US20070117986A1

  公开（公告）日：2007-05-24

  A compound of Formula I is disclosed, in which R is a substituent containing a hydrogen bond-forming atom within three atoms from the ring carbon to which the substituent is bonded; X is CH 2 , O, S or NR 1 , wherein R 1 is a hydrocarbyl group or an amino-protecting group having one to about 18 carbon atoms; R 2 is hydrido or a hydrocarbyl group containing one to about twelve carbon atoms; and R 3 is hydrido or methyl, but both R 2 and R 3 are not hydrido when X is CH 2 A molecule of Formula I and those in which R 2 and R 3 can both be hydrido (Formula X) functions as a catalyst in a Mannich reaction to asymmetrically form β-aminoaldehyde or β-aminoketone diastereomeric products having two chiral centers on adjacent carbon atoms and in which the anti-diastereomers are in excess over the syn-diastereomers. Methods for carrying out those syntheses are also disclosed.

  披露了一种公式I的化合物，其中R是含有一个在距离与亚基连接的环碳三个原子以内的氢键形成原子的取代基；X是CH2，O，S或NR1，其中R1是一个含有一个到约18个碳原子的烃基团或一个氨基保护基团；R2是氢化物或含有一个到约十二个碳原子的烃基团；R3是氢化物或甲基，但是当X是CH2时，R2和R3不能都是氢化物。公式I的分子以及其中R2和R3都可以是氢化物（公式X）的分子，在曼尼希反应中作为催化剂，非对称地形成具有相邻碳原子上的两个手性中心的β-氨基醛或β-氨基酮对映异构体产品，并且反式对映异构体过剩于顺式对映异构体。还披露了进行那些合成的方法。
• Analogs of 4-hydroxyisoleucine and uses thereof
  申请人：Mioskowski Charles

  公开号：US20060199853A1

  公开（公告）日：2006-09-07

  The invention relates to analogs of 4-hydroxyisoleucine, and to lactones, pharmaceutically acceptable salts, and prodrugs thereof, to processes for their preparation, and to pharmaceutical compositions comprising the same. The analogs of the invention stimulate both glucose uptake and insulin secretion, and may thus be useful for the prevention and treatment of disorders of carbohydrate or lipid metabolism, including diabetes mellitus (type 1 and type 2 diabetes), pre-diabetes, and Metabolic Syndrome.

  本发明涉及4-羟基异亮氨酸的类似物，以及它们的内酯、药物可接受的盐和前药，其制备过程，以及包含它们的药物组合物。发明的这些类似物能够刺激葡萄糖摄取和胰岛素分泌，因此可用于预防治疗碳水化合物或脂质代谢紊乱，包括糖尿病（1型和2型糖尿病）、前驱糖尿病和代谢综合征。
• [EN] ORGANOCATALYSTS AND METHODS OF USE IN CHEMICAL SYNTHESIS<br/>[FR] ORGANOCATALYSEURS ET PROCEDES D'UTILISATION DE CES DERNIERS DANS LA SYNTHESE CHIMIQUE
  申请人：STC UNM

  公开号：WO2006007586A1

  公开（公告）日：2006-01-19

  The present invention pertains generally to compositions comprising organocatalysts that facilitate stereo-selective reactions and the method of their synthesis and use. Particularly, the invention relates to metal-free organocatalysts for facilitation of stereo-­selective reactions, and the method of their synthesis and use. These compounds have the structure of the Formulas (I) and (II). Where X is independently selected from CH2, N-Ra, O, S or C=O; Y is CH2, N-Ra, O, S or C=O, with the proviso that at least one of X or Y is CH2, and preferably both of X and Y are CH2; Ra is H, an optionally substituted C1-C12 alkyl, preferably an optionally substituted C1-C6 alkyl including a C3-C6 cyclic alkyl group, or an optionally substituted aryl group, preferably an optionally substituted phenyl group; Rb is H, an optionally substituted C1-C12 alkyl, preferably an optionally substituted C1-C6 acyclic or a a C3-C6 cyclic alkyl group, CHO, N(Me)O, CO(S)Ra or the group of Formula (III). Where Rc and Rd are each independently H, F, C1, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1-C12 alkyl, more preferably a C1-C6 alkyl, and an optionally substituted aryl group, or together Rc and Rd form an optionally substituted carbocyclic or optionally substituted heterocyclic ring; R1 is OH, OR, NR'R', NHC(=O)R, NHSO2R; R2 is H, F, C1, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1­C6 alkyl, an optionally substituted aryl group or a =O group (which establishes a carbonyl group with the carbon to which =O is attached; R3 is H, OH, F, C1, Br, I, Cl, an optionally substituted C1-C20 alkyl, alkenyl or alkynyl ('hydrocarbyl') group, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl, such that the carbon to which R3 is attached has an R or S configuration; R is H, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl group, R' and R' are each independently H, an optionally substituted C1-C20 alkyl group, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl group; or together R' and R' form an optionally substituted heterocyclic, preferably a 4 to 7 membered optionally substituted heterocyclic group or an optionally substituted heteroaryl ring with the nitrogen to which R' and R' are attached; and wherein said compound is free from a metal catalyst.

  本发明涉及一般包括有机催化剂的组合物，该催化剂促进立体选择性反应以及其合成和使用方法。特别地，本发明涉及无金属有机催化剂以促进立体选择性反应，以及其合成和使用方法。这些化合物具有以下结构的式（I）和（II）。其中X独立地选择自CH2、N-Ra、O、S或C=O；Y为CH2、N-Ra、O、S或C=O，但至少X或Y中的一个为CH2，最好是X和Y都为CH2；Ra为H、可选择地取代的C1-C12烷基，最好是可选择地取代的C1-C6烷基，包括C3-C6环烷基，或可选择地取代的芳基，最好是可选择地取代的苯基；Rb为H、可选择地取代的C1-C12烷基，最好是可选择地取代的C1-C6无环或C3-C6环烷基，CHO、N(Me)O、CO(S)Ra或式（III）的基团。其中Rc和Rd各自独立地为H、F、C1、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C12烷基，更好地是C1-C6烷基，以及可选择地取代的芳基，或者Rc和Rd一起形成可选择地取代的碳环或可选择地取代的杂环；R1为OH、OR、NR'R'、NHC(=O)R、NHSO2R；R2为H、F、C1、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C6烷基，可选择地取代的芳基或=O基团（与=O连接的碳形成羰基基团）；R3为H、OH、F、C1、Br、I、Cl、可选择地取代的C1-C20烷基、烯基或炔基（'烃基'），最好是可选择地取代的C1-C6烷基，或可选择地取代的芳基，使得R3连接的碳具有R或S构型；R为H、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C6烷基，或可选择地取代的芳基，R'和R'各自独立地为H、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C6烷基，或可选择地取代的芳基；或者R'和R'一起形成可选择地取代的杂环，最好是4到7成员的可选择地取代的杂环基团或与R'和R'连接的氮原子形成可选择地取代的杂芳基环；其中所述化合物不含金属催化剂。
• A Highly Enantioselective Amino Acid-Catalyzed Route to Functionalized α-Amino Acids
  作者：Armando Córdova、Wolfgang Notz、Guofu Zhong、Juan M. Betancort、Carlos F. Barbas

  DOI：10.1021/ja017270h

  日期：2002.3.1

  enantiomerically pure α-amino acids has intrigued generations of chemists and been the subject of intense research. This report describes a general approach to functionalized α-amino acids based on catalytic asymmetric synthesis. Proline catalyzed Mannich-type reactions of N-PMP-protected α-imino ethyl glyoxylate with a variety of unmodified ketones to provide functionalized α-amino acids in high yields with

  提供对映异构纯 α-氨基酸的合成方法的发展引起了几代化学家的兴趣，并成为深入研究的主题。本报告描述了基于催化不对称合成的功能化 α-氨基酸的一般方法。脯氨酸催化 N-PMP 保护的 α-亚氨基乙醛酸乙酯与各种未修饰的酮的曼尼希型反应，以高产率提供功能化的 α-氨基酸，具有出色的区域选择性、非对映选择性和对映选择性。对七个实例的研究产生了六个，产品 ee 值≥99%。在涉及可以形成非对映异构产物的酮供体的反应中，两个相邻的立体中心在碳-碳键形成时同时产生，具有完全的同步立体控制。显着地，
• The Scope of the Direct Proline-Catalyzed Asymmetric Addition of Ketones to Imines
  作者：Wolfgang Notz、Shin-ichi Watanabe、Naidu S. Chowdari、Guofu Zhong、Juan M. Betancort、Fujie Tanaka、Carlos F. Barbas

  DOI：10.1002/adsc.200404114

  日期：2004.8

  A full account of catalytic direct asymmetric Mannich-type reactions is presented describing the scope of amino acid-catalyzed additions of unmodified ketones to a large variety of imines. These reactions are performed under very mild, operationally simple, and environmentally friendly and benign conditions employing a one-pot, three-component protocol as well as preformed imines. Typically, products

  提供了催化直接不对称曼尼希型反应的完整说明，描述了氨基酸催化的未修饰酮加到各种亚胺中的范围。这些反应是在非常温和的，操作简单的，环境友好的和良性的条件下进行的，采用一锅，三组分方案以及预先形成的亚胺。通常，获得的产物具有高区域和非对映选择性以及极好的对映选择性。所开发的方法学被用作合成对映体纯的功能化α-氨基酸，γ-内酯，肟功能化氨基酸以及药理学上重要的靶标（如（R）-环己基甘氨酸）的有力方法。