(R)-α-methoxy-γ-butyrolactone | 883998-38-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 英文名称: (R)-α-methoxy-γ-butyrolactone
• 英文别名: (R)-3-methoxydihydrofuran-2(3H)-one；(R)-3-methoxy-dihydrofuran-2(3H)-one；(3R)-3-methoxyoxolan-2-one
• CAS: 883998-38-7
• 化学式: C₅H₈O₃
• 分子量: 116.117
• InChiKey: SBQNJPMENLLVNG-SCSAIBSYSA-N

物化性质

• 沸点：
  226.1±33.0 °C(Predicted)
• 密度：
  1.12±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (R)-α-methoxy-γ-butyrolactone 在 4-二甲氨基吡啶 、 sodium periodate 、 三乙胺 、 锌 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 6.41h， 生成
  参考文献：
  名称：

  Construction of the A ring of halichomycin via a RCM strategy

  摘要：

  Attempts to the synthesis of the A ring of halichomycin via ring-closing metathesis (RCM) reaction were investigated. When triene 5 was used as the precursor of cyclization, only unexpected byproduct aldehyde 17 was obtained. When diene 6 was used as the precursor of cyclization, the desired product 20 was obtained in reasonable yield. This work demonstrated that both modification of the substrate and the RCM reaction conditions are important for obtaining the desired 11-membered macrocycle in reasonable yield. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.06.027
• 作为产物：
  描述：

  Rink amide resin 、 二碳酸二叔丁酯 在 三乙胺 作用下， 以 二氯甲烷 为溶剂， 生成 (R)-α-methoxy-γ-butyrolactone
  参考文献：
  名称：

  WO2006/44453

  摘要：

  公开号：

文献信息

• [EN] CYCLIC PHOSPHATE SUBSTITUTED NUCLEOSIDE DERIVATIVES AND METHODS OF USE THEREOF FOR THE TREATMENT OF VIRAL DISEASES<br/>[FR] DÉRIVÉS DE NUCLÉOSIDES CYCLIQUES À SUBSTITUTION PHOSPHATE ET LEURS PROCÉDÉS D'UTILISATION POUR LE TRAITEMENT DE MALADIES VIRALES
  申请人：MERCK SHARP & DOHME

  公开号：WO2017223020A1

  公开（公告）日：2017-12-28

  The present invention relates to Cyclic Phosphate Substituted Nucleoside Derivatives of Formula (I), and pharmaceutically acceptable salts thereof, wherein A, B, Q, V, R1, R2 and R3 are as defined herein. The present invention also relates to compositions comprising a Cyclic Phosphate Substituted Nucleoside Derivative, and methods of using the Cyclic Phosphate Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.

  本发明涉及公式（I）的环磷酸酯取代核苷衍生物及其药用可接受的盐，其中A、B、Q、V、R1、R2和R3如本文所定义。本发明还涉及包含环磷酸酯取代核苷衍生物的组合物，以及使用这些环磷酸酯取代核苷衍生物治疗或预防患者HCV感染的方法。
• An Unusual Conformation of α-Haloamides Due to Cooperative Binding with Zincated Porphyrins
  作者：Marina Tanasova、Qifei Yang、Courtney C. Olmsted、Chrysoula Vasileiou、Xiaoyong Li、Mercy Anyika、Babak Borhan

  DOI：10.1002/ejoc.200900089

  日期：2009.9

  with a zinc porphyrin leads to an unprecedented conformation for the determination of the absolute stereochemistry of α-haloamides (α-halocarboxylic acids derivatized with 1,4-phenylenediamine) through the use of exciton-coupled circular dichroism (ECCD). With the use of chiral lactams, whose rotomeric contributions are minimized, both ECCD and NMR spectroscopy demonstrate that the porphyrin favors binding

  α-卤素原子和羧酰胺基团与锌卟啉之间协同结合的 CD 和 NMR 光谱证据导致了前所未有的构象，用于测定 α-卤代酰胺（用 1,4-苯二胺衍生的 α-卤代羧酸）的绝对立体化学) 通过使用激子耦合圆二色性 (ECCD)。随着手性内酰胺的使用，其旋转异构贡献最小化，ECCD 和 NMR 光谱都表明，与较小的氢原子相比，卟啉更倾向于结合到空间上要求更高的卤素原子的一侧。总而言之，数据强烈暗示了α-手性酰胺以前未观察到的异常构象。提供了用于确定 α-卤代羧酸的绝对立体化学的助记符。 (© Wiley-VCH Verlag GmbH &
• Substituted sulfones and methods of use
  申请人：Askew C. Benny

  公开号：US20060111347A1

  公开（公告）日：2006-05-25

  Selected compounds are effective for treatment of pain and diseases, such as inflammation mediated diseases. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable derivatives thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving pain, inflammation, and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.

  所选化合物对于治疗疼痛和炎症介导的疾病有效。本发明涵盖新颖的化合物、类似物、前药和其药学上可接受的衍生物、制备这些化合物的药物组合物以及预防和治疗涉及疼痛、炎症等疾病和其他不适或病况的方法。本发明还涉及制备这些化合物的过程，以及在这些过程中有用的中间体。
• [EN] SUBSTITUTED ARYL OR HETEROARYLSULFONYLBUTANAMIDES FOR USE AS ANTI-INFLAMMATORY AGENTS<br/>[FR] SULFONES SUBSTITUES ET LEURS METHODES D'UTILISATION
  申请人：AMGEN INC

  公开号：WO2006041888A3

  公开（公告）日：2007-09-07
• Lipodiscamides A–C, New Cytotoxic Lipopeptides from <i>Discodermia kiiensis</i>
  作者：Karen Co Tan、Toshiyuki Wakimoto、Ikuro Abe

  DOI：10.1021/ol501271v

  日期：2014.6.20

  Lipodiscamides A-C, three new lipodepsipeptides, were characterized from the marine sponge Discodermia kiiensis. These structurally rare cyclic lipodepsipeptides were found to possess an unprecedented dilactone macrocycle and, thus, represent a new family of lipopeptides. They are the only lipopeptides bearing 4S-hydroxy-trans-2-enoate, and noncanonical amino acids, l-3-ureidoalanine (Uda), E-dehydronorvaline (Denor), and d-citrulline (Cit). MTT assays against P388 and HeLa cells revealed the moderate cytotoxicity of all three compounds.