(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-10,13-dimethyl-17-((R)-5-oxopentan-2-yl)hexadecahydro-1H-cyclopenta[a] phenanthrene-3,7,12-triyl triacetate | 87899-19-2

• 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: (3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-10,13-dimethyl-17-((R)-5-oxopentan-2-yl)hexadecahydro-1H-cyclopenta[a] phenanthrene-3,7,12-triyl triacetate
• 英文别名: 3α,7α,12α-triacetoxy-5β-cholane-24-al；3α,7α,12α-triacetoxy-5β-cholan-24-al；[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-7,12-diacetyloxy-10,13-dimethyl-17-[(2R)-5-oxopentan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate
• CAS: 87899-19-2
• 化学式: C₃₀H₄₆O₇
• 分子量: 518.691
• InChiKey: UOTHYWGXHLZNKJ-GATWWBNQSA-N

物化性质

• 沸点：
  568.3±50.0 °C(Predicted)
• 密度：
  1.13±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  37
• 可旋转键数：
  10
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.87
• 拓扑面积：
  96
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  (3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-10,13-dimethyl-17-((R)-5-oxopentan-2-yl)hexadecahydro-1H-cyclopenta[a] phenanthrene-3,7,12-triyl triacetate 在 三乙酰氧基硼氢化钠 作用下， 以 二氯甲烷 为溶剂， 反应 0.25h， 生成 N-methyl-N-(3α,7α,12α-triacetoxy-5β-cholan-24-yl)-N′-(7′-chloroquinolin-4′-yl)ethane-1,2-diamine
  参考文献：
  名称：

  Second Generation Steroidal 4-Aminoquinolines Are Potent, Dual-Target Inhibitors of the Botulinum Neurotoxin Serotype A Metalloprotease andP. falciparumMalaria

  摘要：

  Significantly more potent second generation 4-amino-7-chloroquinoline (4,7-ACQ) based inhibitors of the botulinum neurotoxin serotype A (BoNT/A) light chain were synthesized. Introducing an amino group at the C(3) position of the cholate component markedly increased potency (IC50 values for such derivatives ranged from 0.81 to 2.27 mu M). Two additional subclasses were prepared: bis(steroidal)-4,7-ACQ derivatives and bis(4,7-ACQ)cholate derivatives; both classes provided inhibitors with nanomolar-range potencies (e.g., the K-i of compound 67 is 0.10 mu M). During BoNT/A challenge using primary neurons, select derivatives protected SNAP-25 by up to 89%. Docking simulations were performed to rationalize the compounds' in vitro potencies. In addition to specific residue contacts, coordination of the enzyme's catalytic zinc and expulsion of the enzyme's catalytic water were a consistent theme. With respect to antimalarial activity, the compounds provided better IC90 activities against chloroquine resistant (CQR) malaria than CQ, and seven compounds were more active than mefloquine against CQR strain W2.

  DOI：

  10.1021/jm500033r
• 作为产物：
  描述：

  胆酸 在 4-二甲氨基吡啶 、 sodium hypochlorite 、 2,2,6,6-四甲基哌啶氧化物 、 氯甲酸乙酯 、 三乙胺 、 potassium bromide 作用下， 以 四氢呋喃 、 吡啶 、 二氯甲烷 为溶剂， 反应 5.0h， 生成 (3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-10,13-dimethyl-17-((R)-5-oxopentan-2-yl)hexadecahydro-1H-cyclopenta[a] phenanthrene-3,7,12-triyl triacetate
  参考文献：
  名称：

  有效合成7alpha，12alpha-dihydroxy-4-cholesten-3-one及其生物前体7alpha-hydroxy-4-cholesten-3-one：胆汁酸生物合成中的关键中间体。

  摘要：

  本文介绍了化学合成7alpha，12alpha-dihydroxy-4-cholesten-3-one（1a）及其生物学前体7alpha-hydroxy-4-cholesten-3-one（1b）的方法。胆固醇从胆汁酸生物合成的主要途径中的关键中间体。涉及的主要反应是（1）通过胆甾醇（异戊烷）的3碳延伸形成胆固醇（异辛烷）侧链，（2）氧化序列以转化甾体A的3α-羟基/ B环形成所需的4-en-3-one系统，以及（3）对甾体原子核中C-7和C-12位置的羟基的适当保护策略。1a和1b的绝对结构通过NMR和X射线晶体学确认。从2a和2b分别分11步制备的目标化合物1a和1b，

  DOI：

  10.1016/j.steroids.2013.05.011

文献信息

• Benzannulation of 2-Alkenylindoles using Aldehydes by Sequential Triple-Relay Catalysis: A Route to Carbazoles and Carbazole Alkaloids
  作者：Ankush Banerjee、Samrat Sahu、Modhu Sudan Maji

  DOI：10.1002/adsc.201700092

  日期：2017.6.6

  sequential triple‐relay‐catalysis, provides an easy access to several structurally unique carbazoles including 2‐ and 3‐alkenylcarbazoles. This protecting group‐free method enabled one‐pot synthesis of alkaloids such as hyellazole and 6‐chlorohyellazole, and the formal syntheses of seven other alkaloids. Construction of the core structure, present in murastifoline A, murrafoline E, and related alkaloids was

  在单锅顺序三重继电器催化下，将2-烯基吲哚的苯并环与现成的醛一起可轻松获得包括2-3和3-烯基咔唑在内的几种结构独特的咔唑。这种无保护基团的方法可以一锅法合成生物碱，例如hyellazole和6-chlorohyellazole，以及其他七个生物碱的正式合成。还证实了存在于murastifoline A，murrafoline E和相关生物碱中的核心结构的构建。甚至共轭的3,3'-双咔唑也可以通过一锅，两次连续的三重催化合成。
• Transition-Metal-Free Redox-Neutral One-Pot C3-Alkenylation of Indoles Using Aldehydes
  作者：Samrat Sahu、Ankush Banerjee、Modhu Sudan Maji

  DOI：10.1021/acs.orglett.6b03612

  日期：2017.2.3

  indoles in a domino fashion. A transition-metal-free C3-alkenylation of indole is reported by using sequential Brønsted acid/base catalysis. Several β-substituted 3-alkenylindoles and conjugated 1,3-dienes are synthesized by direct coupling of indole and readily available aliphatic aldehydes. Excellent scalability and recycling of benzenesulfinic acid for successive alkenylation reactions up to five times

  具有各种官能团且具有良好选择性的敏感的β-烷基3-乙烯基吲哚的合成仍然是一项艰巨的任务。牢记3-烯基吲哚的合成效用，我们探索了一种独特的方法，以多米诺骨牌形式将它们与未保护的吲哚合成。通过使用连续的布朗斯台德酸/碱催化，报道了吲哚的无过渡金属的C3-烯基化。通过吲哚和容易获得的脂族醛的直接偶联合成了几种β-取代的3-烯基吲哚和共轭的1，3-二烯。出色的可扩展性和苯亚磺酸的再循环能力（最多可进行五次连续的烯基化反应）使该方法在经济上可行。
• Non-stereoselective Formation of 3.ALPHA.,7.ALPHA.,12.ALPHA.,24-Tetrahydroxy-5.BETA.-cholestan- 26-oic Acid during Cholic Acid Biosynthesis.
  作者：Noriko KOBAYASHI、Chiaki HAGIWARA、Masuo MORISAKI、Masatoshi YURI、Izumi OYA、Yoshinori FUJIMOTO

  DOI：10.1248/cpb.42.1028

  日期：——

  Incubation of (25RS)-, (25R)- and (25S)-3α, 7α, 12α-trihydroxy-5β-cholestan-26-oic acid (THCA, 6, 6a, 6b) and (24E)-3α, 7α, 12α-trihydroxy-5β-cholest-24-en-26-oic acid (7) with rat liver mitochondria gave all four stereoisomers (9a, 9b, 9c, 9d) of 3α, 7α, 12α, 24-Tetrahydroxy-5β-cholestan-26-oic acid (TeHCA). The corresponding 27-nor analogs (10, 11) were also converted non-stereoselectively to a 1 : 1 mixture of the epimeric 24-hydroxy compounds (12).

  将(25RS)-、(25R)-和(25S)-3α, 7α, 12α-三羟基-5β-胆烷-26-酸（THCA，6，6a，6b）以及(24E)-3α, 7α, 12α-三羟基-5β-胆甾-24-烯-26-酸（7）与大鼠肝线粒体结合，产生了4种立体异构体（9a，9b，9c，9d）——3α, 7α, 12α, 24-四羟基-5β-胆烷-26-酸（TeHCA）。相应的27-去氢衍生物（10，11）也非选择性地转化为1:1混合物的对映体24-羟基化合物（12）。
• Synthesis and determination of stereochemistry of four diastereoisomers at the C-24 and C-25 positions of 3.ALPHA.,7.ALPHA.,12.ALPHA.,24-tetrahydroxy-5.BETA.-cholestan-26-oic acid.
  作者：TAKUMI KINOSHITA、MASAAKI MIYATA、SHAHNAZ M. ISMAIL、YOSHINORI FUJIMOTO、KATSHMI KAKINUMA、NOBUO IKEKAWA、MASUO MORISAKI

  DOI：10.1248/cpb.36.134

  日期：——

  Four diastereoisomers at the C-24 and C-25 positions of 3α, 7α, 12α, 24-tetrahydroxy-5β-cholestan-26-oic acid (varanic acid) were synthesized in a stereochemically defined manner and also by a non-stereoselective route, followed by chromatographic separation. Their stereochemistry at the C-24 and C-25 positions was established on the basis of the known stereochemical course of the reactions employed for the synthesis, and 1H and 13C-nuclear magnetic resonance spectroscopic data of these isomers. It is concluded from the present work that the previous stereochemical assignment for the (24R, 25S) and (24R, 25R) isomers must be revised.

  在C-24和C-25位点合成了四个3α, 7α, 12α, 24-四羟基-5β-胆烷-26-酸（varanic acid）的立体异构体，既采用了立体化学定义的方法，也通过非立体选择性路线，然后进行色谱分离。根据用于合成的反应已知的立体化学过程以及这些异构体的1H和13C核磁共振光谱数据，确定了它们在C-24和C-25位点的立体化学。本研究得出的结论是，之前对（24R，25S）和（24R，25R）异构体的立体化学分配必须进行修正。
• New 9-aminoacridine derivatives as inhibitors of Botulinum neurotoxins and P. falciparum malaria
  作者：Miklos Tot、Dejan Opsenica、Milena Mitric、James Burnett、Laura Gomba、Sina Bavari、Bogdan Solaja

  DOI：10.2298/jsc130924112t

  日期：——

  Steroidal and adamantane aminoacridine derivatives were prepared and tested as both botulinum neurotoxin (BoNT) inhibitors and antimalarials. Steroid-bound acridines provided good potency against both the BoNT/A and BoNT/B light chains (LCs). The observed inhibition of the BoNT/B LC by ca. 50% is the highest attained inhibitory activity against this serotype by acridine-based compounds to date. With respect to antimalarial activity, adamantane acridines were the most potent derivatives (IC50 = 6-9 nM, SI > 326), indicating that an adamantyl group is a better carries than a steroidal motif for this indication.

  制备了类固醇和金刚烷氨基吖啶衍生物，并将其作为肉毒杆菌神经毒素（BoNT）抑制剂和抗疟药物进行了测试。 作为肉毒杆菌神经毒素（BoNT）抑制剂和抗疟药物进行了测试。 类固醇结合的吖啶对 BoNT/A 和 BoNT/B轻链（LCs）都有很好的抑制作用。所观察到的对 BoNT/B LC 的抑制率约为 50%，是所达到的最高抑制率。 50%，这是迄今为止吖啶类化合物对该血清型达到的最高抑制活性。 吖啶类化合物对该血清型的最高抑制活性。在抗疟活性方面 金刚烷吖啶是最有效的衍生物（IC50 = 6-9 nM，SI >； 326），这表明金刚烷基比甾族 基团。