(+)-(4aS,8R,8aR)-8-hydroxy-1,4a,8a-trimethyl-4,4a,6,7,8,8a,9,10-octahydrophenanthren-2(3H)-one | 670246-55-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 菲及其衍生物
• 英文名称: (+)-(4aS,8R,8aR)-8-hydroxy-1,4a,8a-trimethyl-4,4a,6,7,8,8a,9,10-octahydrophenanthren-2(3H)-one
• 英文别名: (4aS,8R,8aR)-8-hydroxy-1,4a,8a-trimethyl-4,6,7,8,9,10-hexahydro-3H-phenanthren-2-one
• CAS: 670246-55-6
• 化学式: C₁₇H₂₄O₂
• 分子量: 260.376
• InChiKey: KKAPZVKSABZOMX-IXDOHACOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  19
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (+)-(4aS,8R,8aR)-8-hydroxy-1,4a,8a-trimethyl-4,4a,6,7,8,8a,9,10-octahydrophenanthren-2(3H)-one 在 palladium on activated charcoal 重铬酸吡啶 、 4 A molecular sieve 、 氨 、 氢气 、 lithium 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 乙醇 、 二氯甲烷 、 甲苯 为溶剂， 反应 29.0h， 生成 (-)-(4aR,4bR,8aR,10aR)-7,7-ethylenedioxy-4b,8,8,10a-tetramethyl-3,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydrophenanthren-1(2H)-one
  参考文献：
  名称：

  从青霉属sp分离的化感物质brevione B的合成和绝对构型。

  摘要：

  Breviones A-E（1 - 5）中，从分离的感物质短密青霉Dierckx，在结构上是独特的二萜类化合物的衍生物。brevione B（2）的两个对映异构体的第一次合成是通过使用双S N 2'型串联反应作为关键步骤完成的，并且确定了天然存在的2个对映体的绝对构型。

  DOI：

  10.1016/j.tet.2005.09.129
• 作为产物：
  描述：

  (4aSR,8RS,8aRS)-8-hydroxy-1,4a,8a-trimethyl-4,4a,6,7,8,8a,9,10-octahydrophenanthren-2(3H)-one 在 Chirazyme L-2 、 potassium carbonate 作用下， 以 甲醇 、 乙醚 为溶剂， 反应 46.0h， 生成 (+)-(4aS,8R,8aR)-8-hydroxy-1,4a,8a-trimethyl-4,4a,6,7,8,8a,9,10-octahydrophenanthren-2(3H)-one
  参考文献：
  名称：

  从青霉属sp分离的化感物质brevione B的合成和绝对构型。

  摘要：

  Breviones A-E（1 - 5）中，从分离的感物质短密青霉Dierckx，在结构上是独特的二萜类化合物的衍生物。brevione B（2）的两个对映异构体的第一次合成是通过使用双S N 2'型串联反应作为关键步骤完成的，并且确定了天然存在的2个对映体的绝对构型。

  DOI：

  10.1016/j.tet.2005.09.129

文献信息

• Chemical synthesis of tetracyclic terpenes and evaluation of antagonistic activity on endothelin-A receptors and voltage-gated calcium channels
  作者：Jianyu Lu、Angelo Aguilar、Bende Zou、Weier Bao、Serkan Koldas、Aibin Shi、John Desper、Philine Wangemann、Xinmin Simon Xie、Duy H. Hua

  DOI：10.1016/j.bmc.2015.06.055

  日期：2015.9

  A class of tetracyclic terpenes was synthesized and evaluated for antagonistic activity of endothelin-1 (ET-1) induced vasoconstriction and inhibitory activity of voltage-activated Ca2+ channels. Three repeated Robinson annulation reactions were utilized to construct the tetracyclic molecules. A stereoselective reductive Robinson annulation was discovered for the formation of optically pure tricyclic

  合成一类四环萜烯并评估内皮素-1（ET-1）诱导的血管收缩的拮抗活性和电压激活的Ca 2+通道的抑制活性。利用三个重复的鲁滨逊环化反应来构建四环分子。发现了立体选择性还原罗宾逊环空法用于形成光学纯的三环萜烯。发现向四环烯酮（-）- 18的受阻α面立体选择性加成氰化物，随后转化为醛官能受到双环半亚胺（-）- 4的形成的影响。。六个选定的合成四环萜烯在ET-1诱导的沙鼠螺旋mod动脉中的血管收缩中表现出抑制活性，推定的亲和力常数在93至319 nM之间。此外，对一种化合物（-）- 3进行了进一步评估，发现在相似浓度下，其抑制了电压激活的Ca 2+电流，但不影响背根神经节细胞中的Na +或K +电流。这些观察结果暗示了双重作用机制。总之，四环萜烯代表了一类新型的命中分子，用于发现治疗肺动脉高压和血管相关疾病的新药物。
• Synthesis of Skeleton of Antitumor Quassinoid
  作者：Makoto Sasaki、Tatsushi Murae、Hisaaki Matsuo、Toshiyuki Konosu、Naoko Tanaka、Kiyoshi Yagi、Yoshinosuke Usuki、Takeyoshi Takahashi

  DOI：10.1246/bcsj.61.3587

  日期：1988.10

  A compound having a skeleton of an antitumor quassinoid, bruceantin, was prepared according to the following strategy; 1) construction of ring ABC from ring AB by cyclization of a hindered 1,5-diketone; 2) construction of ring E (ether ring) by opening of a 12,13-epoxide ring followed by attack of oxygen at C-20 toward C-13; 3) formation of ring D (hemiacetal ring) by treatment of a 7α-hydroxy-16-al

  根据以下策略制备了具有抗肿瘤类拟甙元的骨架的化合物，bruceantin；1) 通过受阻 1,5-二酮环化从环 AB 构建环 ABC；2) 通过打开 12,13-环氧化物环，然后在 C-20 处向 C-13 进行氧攻击来构建环 E（醚环）；3) 通过用 PPTS 处理 7α-羟基-16-al 二甲基缩醛形成环 D（半缩醛环）。
• Tricyclic Compounds Containing Nonenolizable Cyano Enones. A Novel Class of Highly Potent Anti-Inflammatory and Cytoprotective Agents
  作者：Tadashi Honda、Hidenori Yoshizawa、Chitra Sundararajan、Emilie David、Marc J. Lajoie、Frank G. Favaloro、Tomasz Janosik、Xiaobo Su、Yukiko Honda、Bill D. Roebuck、Gordon W. Gribble

  DOI：10.1021/jm101445p

  日期：2011.3.24

  Forty-four novel tricycles containing nonenolizable cyano enones (TCEs) were designed and synthesized on the basis of a semisynthetic pentacyclic triterpenoid, bardoxolone methyl, which is currently being developed in phase II clinical trials for the treatment of severe chronic kidney disease in diabetic patients. Most of the TCEs having two different kinds of nonenolizable cyano enones in rings A and C are highly potent suppressors of induction of inducible nitric oxide synthase stimulated with interferon-gamma and are highly potent inducers of the cytoprotective enzymes heme oxygenase-1 and NAD(P)H:quinone oxidoreductase-1. Among these compounds, (+/-)-(4bS,8aR,10aS)-10a-ethynyl-4b,8,8-trimethyl-3,7-dioxo-3,4b,7,8,8a,9,10,10a-octahydrophenanthrene-2,6-dicarbonitrile ((+/-)-31) is the most potent in these bioassays in our pool of drug candidates including semisynthetic triterpenoids and synthetic tricycles. These facts strongly suggest that an essential factor for potency is not a triterpenoid skeleton but the cyano enone functionality. Notably, TCE 31 reduces hepatic tumorigenesis induced with aflatoxin in rats. Further preclinical studies and detailed mechanism studies on 31 are in progress.
• HIROTA, HIROSHI;NAKAMURA, TOSHIO;TSUYUKI, TAKAHIKO;TAKAHASHI, TAKEYOSHI, BULL. CHEM. SOC. JAP., 61,(1988) N1, C. 4023-4028
  作者：HIROTA, HIROSHI、NAKAMURA, TOSHIO、TSUYUKI, TAKAHIKO、TAKAHASHI, TAKEYOSHI

  DOI：——

  日期：——
• Synthesis of the western half of breviones C, D, F and G
  作者：Francisco A. Macías、Ceferino Carrera、Nuria Chinchilla、Frank R. Fronczek、Juan C.G. Galindo

  DOI：10.1016/j.tet.2010.03.116

  日期：2010.6

  The enantioselective synthesis of the diterpenic moiety in the abeo-breviano skeleton is reported. The synthesis is carried out starting from 2-methyl-1,3-cyclohexanedione and EVK in eleven steps following a ring-expansion strategy once the tricyclic perhydrophenantrene skeleton has been obtained. A new Tiffeneau-Demjanov rearrangement under dark conditions is reported in which the insertion of the new methylene group is directed towards the most hindered side of the carbonyl group. This result is new and opposite to those reported in the literature under light (filtered or un-filtered wavelengths) conditions where insertion in the less hindered side is usually preferred. (C) 2010 Elsevier Ltd. All rights reserved.