(R)-2-羟基甲基戊酸 | 752258-16-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: (R)-2-羟基甲基戊酸
• 中文别名: (S)-2-羟甲基己酸
• 英文名称: (S)-2-butyl-3-hydroxypropionic acid
• 英文别名: (S)-2-(hydroxymethyl)hexanoic acid；(S)-2-Hydroxymethyl-hexanoic acid；(2S)-2-(hydroxymethyl)hexanoic acid
• CAS: 752258-16-5
• 化学式: C₇H₁₄O₃
• 分子量: 146.186
• InChiKey: ICBHDGOFKNWYJO-LURJTMIESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  10
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  57.5
• 氢给体数：
  2
• 氢受体数：
  3

安全信息

• 海关编码：
  2918199090

反应信息

• 作为产物：
  描述：

  butylmalonic acid monoethyl ester 在 盐酸 、 锂硼氢 作用下， 以 四氢呋喃 、 醋酸异丙酯 、 水 、 乙酸乙酯 、 异丙醇 为溶剂， 反应 11.58h， 生成 (R)-2-羟基甲基戊酸
  参考文献：
  名称：

  （R）-2-丁基-3-羟基丙酸的高效合成

  摘要：

  描述了通过（±）-2-丁基-3-羟基丙酸（7）与（R）-α-甲基苄基胺的经典拆分有效合成（R）-2-丁基-3-羟基丙酸（1）的方法。（±）-2-丁基-3-羟基丙酸（7）可容易地从丙二酸二丁酯（2）中分两步获得。还描述了用猪肝酯酶和α-胰凝乳蛋白酶对1进行2的对映选择性酶水解的结果。

  DOI：

  10.1021/op060199l

文献信息

• NOVEL PROCESSES FOR THE PREPARATION OF PHENYLCYCLOPROPYLAMINE DERIVATIVES AND USE THEREOF FOR PREPARING TICAGRELOR
  申请人：Khile Anil Shahaji

  公开号：US20130165696A1

  公开（公告）日：2013-06-27

  Provided herein are novel processes for the preparation of phenylcyclopropylamine derivatives, which are useful intermediates in the preparation of triazolo[4,5-d]pyrimidine compounds. Provided particularly herein are novel, commercially viable and industrially advantageous processes for the preparation of a substantially pure ticagrelor intermediate, trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine. Provided further herein are novel acid addition salts of trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine, and process for their preparation. The intermediate and its acid addition salts are useful for preparing ticagrelor, or a pharmaceutically acceptable salt thereof, in high yield and purity.

  本文提供了一种制备苯基环丙胺衍生物的新型工艺，这些衍生物在三唑并[4,5-d]嘧啶化合物的制备中是有用的中间体。特别提供了一种新颖、商业可行且在工业上具有优势的工艺，用于制备一种基本纯的替卡格雷中间体，即trans-(1R,2S)-2-(3,4-二氟苯基)-环丙胺。此外，本文还提供了trans-(1R,2S)-2-(3,4-二氟苯基)-环丙胺的新型酸加盐，以及其制备工艺。该中间体及其酸加盐对于高产率和纯度制备替卡格雷或其药用可接受盐是有用的。
• NOVEL PROCESS FOR PREPARING PHENYLCYCLOPROPYLAMINE DERIVATIVES USING NOVEL INTERMEDIATES
  申请人：Khile Anil Shahaji

  公开号：US20130150577A1

  公开（公告）日：2013-06-13

  Provided herein is a novel process for the preparation of phenylcyclopropylamine derivatives, which are useful intermediates in the preparation of triazolo[4,5-d]pyrimidine compounds. Provided particularly herein is a novel, commercially viable and industrially advantageous process for the preparation of a substantially pure ticagrelor intermediate, trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine. The intermediate is useful for preparing ticagrelor, or a pharmaceutically acceptable salt thereof, in high yield and purity.

  本文提供了一种新颖的制备苯基环丙胺衍生物的过程，这些衍生物在三唑并[4,5-d]嘧啶化合物的制备中是有用的中间体。特别提供了一种新颖的、商业可行且在工业上具有优势的过程，用于制备一种基本纯净的替卡格雷中间体，即trans-(1R,2S)-2-(3,4-二氟苯基)-环丙胺。该中间体可用于高产率和纯度地制备替卡格雷或其药学上可接受的盐。
• Synthesis of Enantiomerically Enriched 2-Hydroxymethylalkanoic Acids by Oxidative Desymmetrisation of Achiral 1,3-Diols Mediated by<i>Acetobacter aceti</i>
  作者：Elisabetta Brenna、Flavia Cannavale、Michele Crotti、Valerio De Vitis、Francesco G. Gatti、Gaia Migliazza、Francesco Molinari、Fabio Parmeggiani、Diego Romano、Sara Santangelo

  DOI：10.1002/cctc.201601051

  日期：2016.12.19

  achiral 2‐alkyl‐1,3‐diols is performed by oxidation of one of the two enantiotopic primary alcohol moieties by means of Acetobacter aceti MIM 2000/28 to afford the corresponding chiral 2‐hydroxymethyl alkanoic acids (up to 94 % ee). The procedure, carried out in aqueous medium under mild conditions of pH, temperature and pressure, contributes to enlarge the portfolio of enzymatic oxidations available

  非手性2-烷基-1,3-二醇的立体选择性去对称化是通过醋乙酸醋杆菌MIM 2000/28氧化两个对位伯醇部分之一进行的，以提供相应的手性2-羟甲基链烷酸（最高94 ％ee）。该过程在pH，温度和压力中等的水性介质中进行，有助于扩大有机化学家可用于开发可持续生产工艺的酶促氧化反应的范围。
• [EN] PROCESS FOR PRODUCTION OF (S)-(TETRAHYDROFURAN-3-YL)HYDRAZINE<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE (S)-(TÉTRAHYDROFURANN-3-YL)HYDRAZINE
  申请人：EISAI R&D MAN CO LTD

  公开号：WO2016021192A1

  公开（公告）日：2016-02-11

  A process for production of (S)-(tetrahydrofuran-3-yl)hydrazine of formula I or an acid addition salt thereof, comprising hydrolysis or hydrogenation step of protected hydrazine compound of formula VII, wherein Ra is a tert-butyl group or a benzyl group, is disclosed. (S)-(Tetrahydrofuran-3-yl)hydrazine of formula I or an acid addition salt thereof is a useful intermediate in the preparation of a PDE9 inhibitor.

  揭示了一种生产（S）-（四氢呋喃-3-基）肼的方法，其化学式为I或其酸盐，包括对化学式VII的保护肼化合物进行水解或氢化步骤，其中Ra是叔丁基或苄基。化学式I的（S）-（四氢呋喃-3-基）肼或其酸盐是制备PDE9抑制剂时的有用中间体。
• Chemical process for the preparation of intermediates to obtain n-formyl hydroxy-lamine compounds
  申请人：Prashad Mahavir

  公开号：US20070179298A1

  公开（公告）日：2007-08-02

  Improved processes for preparing intermediates useful for preparing antibacterial N-[1-oxo-2-alkyl-3-(N-hydroxyformamido)-propyl}-(carbonylamino-aryl or -heteroaryl)-azacyclo4-7alkanes or thiazacyclo4-7alkanes, which have one or more of the following features: (1) make use of a particular β-lactam intermediate; (2) which make use of a particular resolving agents, enantiomerically pure substituted propionic acids, especially (R)-2-butyl-3-hydroxy-propionic acid; (3) which avoid the use of hydrogen peroxide; and (4) which facilitate selective debenzylation reducing production of waste by-products.

  改进的工艺用于制备中间体，有助于制备抗菌N-[1-氧代-2-烷基-3-(N-羟基甲酰胺基)-丙基}-(羰基氨基-芳基或杂环芳基)-氮杂环4-7烷或硫杂环4-7烷，具有以下一项或多项特征：（1）利用特定的β-内酰胺中间体；（2）利用特定的分离剂，对映异构纯取代丙酸，特别是（R）-2-丁基-3-羟基-丙酸；（3）避免使用过氧化氢；（4）有助于选择性脱苄基，减少废弃产物的产生。