5α-cholestan-3β-ol | 69977-26-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 5α-cholestan-3β-ol
• 英文别名: Halostanol；(3S,5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-5-methylhexan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol
• CAS: 69977-26-0
• 化学式: C₂₆H₄₆O
• 分子量: 374.651
• InChiKey: ZQDSXDIYKPVJHY-DRYQTVNKSA-N

物化性质

• 沸点：
  444.9±13.0 °C(Predicted)
• 密度：
  0.961±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  8.8
• 重原子数：
  27
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  5α-cholestan-3β-ol 在 [ruthenium(II)(η⁶-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]₂ 、 三乙胺 作用下， 以 丙酮 、 甲苯 为溶剂， 以75%的产率得到(5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-5-methylhexan-2-yl]-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
  参考文献：
  名称：

  仲醇的化学选择性连续Ru催化氢转移Oppenauer型氧化。

  摘要：

  报道了用于选择性氧化仲醇的连续流方法。该方法基于Oppenauer型钌催化的氢转移过程，该过程使用丙酮作为溶剂和氧化剂。该方法利用低负载量（1 mol％）的市售钌催化剂[Ru（p- Cymene）Cl 2 ] 2和三乙胺作为碱，可以成功地应用于各种不同的底物上，并具有良好的功能组耐受性。

  DOI：

  10.1021/acs.oprd.7b00190

文献信息

• Application of a novel chromophoric reagent, 2,2′-binaphthyl-3,3′-dicarbonyl cyanide, to the absolute configuration determination of chiral secondary alcohols
  作者：Toshio Fujiwara、Yuka Taniguchi、Yuri Kokuryu、Yuumi Baba、Daiki Kawano、Yuuki Kawakami、Shouta Suzuki、Yukiteru Katsumoto、Minoru Ozeki、Hiroki Iwasaki、Ichiro Takahashi、Naoto Kojima、Masayuki Yamashita、Shinzo Hosoi

  DOI：10.1016/j.tetlet.2020.151984

  日期：2020.6

  3′-dicarbonyl cyanide possessing two reaction sites was designed and synthesized as a new chromophoric reagent for exciton-coupled circular dichroism (ECCD), which is more effective in determination of the absolute stereochemistry of the target chiral alcohols than 2,2′-binaphthyl-3-methoxycarbonyl-3′-carbonyl cyanide, which contains only one reaction site. The CD spectra of the 2,2′-binaphthyl diesters

  设计并合成了具有两个反应位点的2,2'-联萘基-3,3'-二羰基氰化物作为激子偶联圆二色性（ECCD）的新发色试剂，在确定目标的绝对立体化学方面更有效手性醇比2,2'-联萘-3-甲氧基羰基-3'-羰基氰化物仅包含一个反应位点。衍生自手性仲醇的2,2'-联萘二酯的CD光谱显示中心在240 nm处的双符号曲线，其中Δε值约为联萘甲基单酯的两倍。
• [EN] POLYNUCLEOTIDES FOR DISRUPTING IMMUNE CELL ACTIVITY AND METHODS OF USE THEREOF<br/>[FR] POLYNUCLÉOTIDES SERVANT À PERTURBER L'ACTIVITÉ DE CELLULE IMMUNITAIRE ET PROCÉDÉS POUR LES UTILISER
  申请人：MODERNATX INC

  公开号：WO2020227510A1

  公开（公告）日：2020-11-12

  The disclosure features isolated polynucleotides, such as mRNAs, encoding a polypeptide that disrupts immune cell activity, such as T cell or B cell activity, including mRNAs comprising one or more modified nucleobase. The immune cell disruptor polynucleotides encode a polypeptide that comprises a first domain that mediates association of the polypeptide with an immune cell component and a second domain that mediates inhibition of immune cell activity when the polypeptide is expressed in the immune cell. The disclosure also features methods of using the same, for example, for inhibiting immune responses when administered to a subject, such as to inhibit autoimmune reactions.

  该披露涉及孤立的多聚核苷酸，如编码破坏免疫细胞活性的多聚核苷酸，例如T细胞或B细胞活性的mRNA，包括包含一个或多个修饰的核碱基的mRNA。这些免疫细胞破坏多聚核苷酸编码一个包括第一个结构域的多肽，该结构域介导多肽与免疫细胞组分的结合，以及一个介导当多肽在免疫细胞中表达时抑制免疫细胞活性的第二结构域。该披露还涉及使用相同的方法，例如，将其用于向受试者施用时抑制免疫反应，例如用于抑制自身免疫反应。
• [EN] MRNAS ENCODING IMMUNE MODULATING POLYPEPTIDES AND USES THEREOF<br/>[FR] ARNM CODANT DES POLYPEPTIDES DE MODULATION IMMUNITAIRE ET LEURS UTILISATIONS
  申请人：MODERNA TX INC

  公开号：WO2021076805A1

  公开（公告）日：2021-04-22

  The disclosure features lipid nanoparticle (LNP) compositions comprising immune modulating polypeptides and uses thereof. The LNP compositions of the present disclosure comprise mRNA therapeutics encoding immune modulating polypeptides, e.g., interleukin 2 (IL- 2) and/or granulocyte macrophage colony stimulating factor (GM-CSF). The LNP compositions of the present disclosure can stimulate T regulatory cells, e.g., increase the level and/or activity of T regulatory cells in vivo or ex vivo.

  披露了包含免疫调节多肽的脂质纳米粒子（LNP）组合物及其用途。本公开的LNP组合物包括编码免疫调节多肽的mRNA治疗药物，例如白细胞介素2（IL-2）和/或粒细胞巨噬细胞集落刺激因子（GM-CSF）。本公开的LNP组合物可以刺激T调节细胞，例如在体内或体外增加T调节细胞的水平和/或活性。
• STEROL ANALOGS AND USES THEREOF
  申请人：ModernaTX, Inc.

  公开号：US20220402965A1

  公开（公告）日：2022-12-22

  The invention relates to compositions and methods for the preparation, manufacture, and therapeutic use of compositions comprising mRNA and a lipid nanoparticle comprising a compound of the invention and an ionizable lipid.

  本发明涉及包含mRNA和脂质纳米粒子的组合物的制备、制造和治疗用途的方法和组合物，所述脂质纳米粒子包括本发明的化合物和可离子化脂质。
• COMPOSITIONS AND METHODS FOR DELIVERY OF AGENTS TO IMMUNE CELLS
  申请人：ModernaTX, Inc.

  公开号：US20190314291A1

  公开（公告）日：2019-10-17

  The disclosure features immune cell delivery lipid nanoparticle (LNP) compositions that allow for enhanced delivery of agents, e.g., nucleic acids, such as therapeutic and/or prophylactic RNAs, to immune cells, in particular T cells, as well as B cells, dendritic cells and monocytes. The LNPs comprise an effective amount of an immune cell delivery potentiating lipid such that delivery of an agent by an immune cell delivery LNP is enhanced as compared to an LNP lacking the immune cell delivery potentiating agent. Methods of using the immune cell delivery LNPs for delivery of agents, e.g., nucleic acid delivery, for protein expression, for modulating immune cell activity and modulating immune responses are also disclosed.