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ethyl (R)-8-chloro-6-hydroxyoctanoate | 852383-82-5

中文名称
——
中文别名
——
英文名称
ethyl (R)-8-chloro-6-hydroxyoctanoate
英文别名
ethyl (6R)-8-chloro-6-hydroxyoctanoate
ethyl (R)-8-chloro-6-hydroxyoctanoate化学式
CAS
852383-82-5
化学式
C10H19ClO3
mdl
——
分子量
222.712
InChiKey
YSFJHUHDLIFMPB-SECBINFHSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    2.1
  • 重原子数:
    14.0
  • 可旋转键数:
    8.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.9
  • 拓扑面积:
    46.53
  • 氢给体数:
    1.0
  • 氢受体数:
    3.0

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    ethyl (R)-8-chloro-6-hydroxyoctanoate 在 sodium sulfide 、 氯化亚砜 、 sulfur 、 sodium hydroxide 作用下, 生成 R-(+)-硫辛酸
    参考文献:
    名称:
    Better-酮酯还原酶的活性和热稳定性共同进化,可以更好地合成(R)-α-硫辛酸前体。
    摘要:
    在这项工作中,我们确定了来自准假丝酵母的天然β-酮酯还原酶CpAR2的显着改良变体(S131Y / Q252I),可有效生产(R)-8-氯-6-羟基辛酸[(R)-ECHO]通过活性和热稳定性的共同进化。对于野生型酶(CpAR2WT),变体CpAR2S131Y / Q252I对8-氯-6-氧代辛酸β-酮酯的活性从120 U mg-1提高到214 U mg-1--与CpAR2WT相比,半灭活温度(T50,孵育15分钟)同时提高了2.3°C。因此,仅需2 g L-1的冻干大肠杆菌细胞(带有CpAR2S131Y / Q252I)和葡萄糖脱氢酶(GDH),即可达到与我们以前的工作相似的生产率,在优化的反应条件下(530 g L-1 d-1)。该结果证明了生产关键的(R)-α-硫辛酸中间体8-氯-6-氧辛酸乙酯的经济和有效的方法。
    DOI:
    10.1002/cbic.201900693
  • 作为产物:
    描述:
    6-氧代-8-氯辛酸乙酯葡萄糖 、 lyophilized cells of Escherichia coli pET28a-CpAR2-BmGDH 、 potassium carbonate还原型辅酶II(NADPH)四钠盐 作用下, 以 乙醇 为溶剂, 反应 12.0h, 以99%的产率得到
    参考文献:
    名称:
    有效合成(R)-α-硫辛酸前体的ε-酮酯还原酶的鉴定
    摘要:
    从副产念珠菌中分离出了一种新型的还原酶(Cp AR2),该酶对ε-酮酯(8-氯-6-氧代辛酸乙酯)具有异常高的活性。共表达Cp AR2和葡萄糖脱氢酶基因的大肠杆菌细胞对8-氯-6-氧代辛酸乙酯的不对称还原产生了(R)-8-氯-6-羟基辛酸乙酯,这是合成(R)-α-的关键前体硫辛酸,时空产率高(530 g L -1  d -1),对映体过量极佳(> 99%)。该生物过程显示出在10 L规模上可行。这种方法为工业生产(R)-α-硫辛酸
    DOI:
    10.1002/adsc.201500001
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文献信息

  • Identification of an ε-Keto Ester Reductase for the Efficient Synthesis of an (<i>R</i> )-α-Lipoic Acid Precursor
    作者:Yu-Jun Zhang、Wen-Xia Zhang、Gao-Wei Zheng、Jian-He Xu
    DOI:10.1002/adsc.201500001
    日期:2015.5.26
    gave ethyl (R)‐8‐chloro‐6‐hydroxyoctanoate, a key precursor for the synthesis of (R)‐α‐lipoic acid, in high space‐time yield (530 g L−1 d−1) and with excellent enantiomeric excess (>99%). This bioprocess was shown to be viable on a 10‐L scale. This method provides a greener and more cost‐effective method for the industrial production of (R)‐α‐lipoic acid.
    从副产念珠菌中分离出了一种新型的还原酶(Cp AR2),该酶对ε-酮酯(8-氯-6-氧代辛酸乙酯)具有异常高的活性。共表达Cp AR2和葡萄糖脱氢酶基因的大肠杆菌细胞对8-氯-6-氧代辛酸乙酯的不对称还原产生了(R)-8-氯-6-羟基辛酸乙酯,这是合成(R)-α-的关键前体硫辛酸,时空产率高(530 g L -1  d -1),对映体过量极佳(> 99%)。该生物过程显示出在10 L规模上可行。这种方法为工业生产(R)-α-硫辛酸
  • Identification of a Robust Carbonyl Reductase for Diastereoselectively Building <i>syn</i>-3,5-Dihydroxy Hexanoate: a Bulky Side Chain of Atorvastatin
    作者:Xu-Min Gong、Gao-Wei Zheng、You-Yan Liu、Jian-He Xu
    DOI:10.1021/acs.oprd.7b00194
    日期:2017.9.15
    chiral precursor for the synthesis of the side chain pharmacophore of cholesterol-lowering drug atorvastatin. Herein, a robust carbonyl reductase (LbCR) was newly identified from Lactobacillus brevis, which displays high activity and excellent diastereoselectivity toward bulky t-butyl 6-cyano-(5R)-hydroxy-3-oxo-hexanoate (7). The engineered Escherichia coli cells harboring LbCR and glucose dehydrogenase
    叔丁基-6-氰基-(3 R,5 R)-二羟基己酸酯是一种先进的手性前体,用于合成降胆固醇药物阿托伐他汀的侧链药效团。在本文中,从短乳杆菌中新鉴定出一种强健的羰基还原酶(Lb CR),它对高密度的叔丁基6-氰基-(5 R)-羟基-3-氧代己酸叔丁酯具有很高的活性和非对映选择性(7)。具有Lb CR和葡萄糖脱氢酶(用于辅因子再生)的工程化大肠杆菌细胞被用作生物催化剂,用于不对称还原底物7。结果,多达300 g L –1的水不溶性底物以351 g L –1 d –1的时空产率被完全转化为相应的手性二元醇,de > 99.5%de,表明了巨大的潜力的Lb的CR对非常笨重和实际合成双向的畅销他汀类药物-手性3,5-二羟基羧酸侧链。
  • Candida carbonyl reductase and method for preparing (R)-lipoic acid precursor
    申请人:East China University of Science and Technology
    公开号:US10294479B2
    公开(公告)日:2019-05-21
    Disclosed herein is Candida parapsilosis CGMCC 9630, the carbonyl reductase expressed by said strain and the encoding gene and amino acid sequence thereof, the recombinant expression vector and recombinant expression transformant containing said gene sequence, and use of whole cells of Candida parapsilosis, carbonyl reductase or corresponding recombinant transformant thereof as catalyst in catalyzing asymmetric reduction of prochiral carbonyl compounds, particularly reduction of 6-carbonyl-8-halogenocaprylate to prepare the synthetic precursor of (R)-α-lipoic acid, (R)-6-hydroxy-8-halogenocaprylate. In comparison to other methods of asymmetric reduction for preparing (R)-6-hydroxy-8-halogenocaprylate, the disclosure has advantages of high substrate concentration, mild reaction conditions, environmental friendship, high yield, and high optical purity of the product, and thus has good prospect in industrial production of (R)-α-α-lipoic acid.
    本文公开了副丝状念珠菌 CGMCC 9630、由所述菌株表达的羰基还原酶及其编码基因和氨基酸序列、重组表达载体和含有所述基因序列的重组表达转化子,以及使用副丝状念珠菌的全细胞、羰基还原酶或其相应的重组转化子作为催化剂,催化手性羰基化合物的不对称还原,特别是还原 6-羰基-8-卤代辛酸酯以制备(R)-α-硫辛酸的合成前体(R)-6-羟基-8-卤代辛酸酯。与其他不对称还原法制备(R)-6-羟基-8-卤代辛酸相比,本发明具有底物浓度高、反应条件温和、环境友好、产率高、产物光学纯度高等优点,因此在(R)-α-α-硫辛酸的工业化生产中具有良好的应用前景。
  • Efficient synthesis of an ε-hydroxy ester in a space–time yield of 1580gL−1d−1 by a newly identified reductase RhCR
    作者:Rui-Jie Chen、Gao-Wei Zheng、Yan Ni、Bu-Bing Zeng、Jian-He Xu
    DOI:10.1016/j.tetasy.2014.10.011
    日期:2014.12
    A new NADH-dependent carbonyl reductase RhCR capable of efficiently reducing the epsilon-ketoester ethyl 8-chloro-6-oxooctanoate (ECOO) to give ethyl (S)-8-chloro-6-hydroxyoctanoate [(S)-ECHO], an important chiral precursor for the synthesis of (R)-alpha-lipoic acid, was identified from Rhodococcus sp. ECU1014. Using recombinant Escherichia coli cells expressing RhCR and glucose dehydrogenase used for the regeneration of cofactor, 440 g L-1 (2 M) of ECOO were stoichiometrically converted to (S)-ECHO in a space-time yield of 1580 g L-1 d(-1) without the external addition of any expensive cofactor. (C) 2014 Elsevier Ltd. All rights reserved.
  • Enzymatic resolution of a chiral chlorohydrin precursor for (R)-α-lipoic acid synthesis via lipase catalyzed enantioselective transacylation with vinyl acetate
    作者:Wei-Jia Zhou、Yan Ni、Gao-Wei Zheng、Huan-Hui Chen、Zhi-Rong Zhu、Jian-He Xu
    DOI:10.1016/j.molcatb.2013.11.005
    日期:2014.1
    A new and efficient process was developed by lipase-catalyzed transacylation to resolve ethyl 8-chloro-6-hydroxy octanoate (ECHO) to produce an important chiral precursor for the synthesis of (R)-alpha-lipoic acid. After optimization of biocatalyst, solvent, acyl donor, temperature and enzyme loading, (S)-O-acetylated ECHO was achieved in 94% ee, 35% isolated yield and 38 g L-1 d(-1) space-time yield using Novozym 435 as biocatalyst. Subsequently, the enzymatic resolution reaction was successfully repeated for 7 batches, retaining over 40% conversions. (C) 2013 Elsevier B.V. All rights reserved.
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