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(4aR,8aR)-1,4a-Dimethyl-2-oxo-3,4,4a,6,7,8,9,10-octahydro-2H-phenanthrene-8a-carboxylic acid methyl ester | 141396-78-3

中文名称
——
中文别名
——
英文名称
(4aR,8aR)-1,4a-Dimethyl-2-oxo-3,4,4a,6,7,8,9,10-octahydro-2H-phenanthrene-8a-carboxylic acid methyl ester
英文别名
——
(4aR,8aR)-1,4a-Dimethyl-2-oxo-3,4,4a,6,7,8,9,10-octahydro-2H-phenanthrene-8a-carboxylic acid methyl ester化学式
CAS
141396-78-3
化学式
C18H24O3
mdl
——
分子量
288.387
InChiKey
PYRZWDCBYGRESL-QZTJIDSGSA-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):
    3.74
  • 重原子数:
    21.0
  • 可旋转键数:
    1.0
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    43.37
  • 氢给体数:
    0.0
  • 氢受体数:
    3.0

反应信息

  • 作为反应物:
    描述:
    (4aR,8aR)-1,4a-Dimethyl-2-oxo-3,4,4a,6,7,8,9,10-octahydro-2H-phenanthrene-8a-carboxylic acid methyl esterruthenium(IV) oxidesodium periodatelithium 作用下, 以 四氢呋喃 为溶剂, 反应 2.0h, 生成 (+/-)-(4aβ,8aβ,10aα)-1,2,3,4,4a,6,7,8,8a,9,10,10a-dodecahydro-1,1,4a-trimethyl-2-oxophenantrene-8a-carboxylic acid
    参考文献:
    名称:
    三环化合物的有效合成,(±)-(4aβ,8aβ,10aα)-1,2,3,4,4a,6,7,8,8a,9,10,10a-十二氢-1,1,4a -TRIMETHYL-2-OXOPHENANTHRENE-8a-羧酸,其甲酯,和 (±)-(4aβ,8aβ,10aα)-3,4,4a,6,7,8,8a,9,10,10a-十氢-8a-羟甲基-1,1,4a-TRIMETHYLPPHENANTHREN-2(1H)-ONE
    摘要:
    我们将注意力集中在 C-8a 位置的修饰上,因为一些具有生物活性的天然产物在同一位置具有功能(例如,抗肿瘤类 quassinoids4)。对于我们计划合成的 C-8a 官能化 TBE 化合物,简单的三环化合物 3-5 可能是非常理想的中间体。我们设想通过标准还原甲基化从已知的酸 65,6 制备 3-5。7 然而,尝试在不含质子供体的液氨中用 5-7 当量的锂还原甲基化酸 6,然后用重氮甲烷酯化得到 4 in 30% 的产率(7 次实验的平均值,产率波动)以及许多副产品。这些副产物对 4 的纯化造成了严重的困难。尝试使用一当量的叔丁醇得到与不使用质子供体相似的结果。尝试将甲基酯 7,6 用重氮甲烷还原甲基化,使用 10 当量锂在不含质子供体的液氨中得到所需化合物 3-5 以及几种副产物,包括烯酮 6 和 8 . 经过大量实验,我们发现加入一当量的水会显着改善这种还原性甲基化反应。因此,使用 7
    DOI:
    10.1080/00304940509354983
  • 作为产物:
    描述:
    重氮甲烷 、 (±)-(4aS,8aS)-1,4a-dimethyl-2-oxo-2,3,4,4a,6,7,8,8a,9,10-decahydrophenanthrene-8a-carboxylic acid 生成 (4aR,8aR)-1,4a-Dimethyl-2-oxo-3,4,4a,6,7,8,9,10-octahydro-2H-phenanthrene-8a-carboxylic acid methyl ester
    参考文献:
    名称:
    三环化合物的有效合成,(±)-(4aβ,8aβ,10aα)-1,2,3,4,4a,6,7,8,8a,9,10,10a-十二氢-1,1,4a -TRIMETHYL-2-OXOPHENANTHRENE-8a-羧酸,其甲酯,和 (±)-(4aβ,8aβ,10aα)-3,4,4a,6,7,8,8a,9,10,10a-十氢-8a-羟甲基-1,1,4a-TRIMETHYLPPHENANTHREN-2(1H)-ONE
    摘要:
    我们将注意力集中在 C-8a 位置的修饰上,因为一些具有生物活性的天然产物在同一位置具有功能(例如,抗肿瘤类 quassinoids4)。对于我们计划合成的 C-8a 官能化 TBE 化合物,简单的三环化合物 3-5 可能是非常理想的中间体。我们设想通过标准还原甲基化从已知的酸 65,6 制备 3-5。7 然而,尝试在不含质子供体的液氨中用 5-7 当量的锂还原甲基化酸 6,然后用重氮甲烷酯化得到 4 in 30% 的产率(7 次实验的平均值,产率波动)以及许多副产品。这些副产物对 4 的纯化造成了严重的困难。尝试使用一当量的叔丁醇得到与不使用质子供体相似的结果。尝试将甲基酯 7,6 用重氮甲烷还原甲基化,使用 10 当量锂在不含质子供体的液氨中得到所需化合物 3-5 以及几种副产物,包括烯酮 6 和 8 . 经过大量实验,我们发现加入一当量的水会显着改善这种还原性甲基化反应。因此,使用 7
    DOI:
    10.1080/00304940509354983
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文献信息

  • Tricyclic-bis-enone derivatives and methods of use thereof
    申请人:——
    公开号:US20030232786A1
    公开(公告)日:2003-12-18
    Novel tricyclic-bis-enone derivatives (TBEs) as well as the process for the preparation of such TBEs are provided. Also provided are methods for prevention and/or treatment of cancer, Alzheimer's disease, Parkinson's disease, multiple sclerosis, amyotropic lateral sclerosis, rheumatoid arthritis, inflammatory bowel disease, and all other diseases whose pathogenesis is believed to involve excessive production of either nitric oxide (NO) or prostaglandins or the overexpression of iNOS or COX-2 genes or gene products. Further, methods for the synthesis of the TBE compounds of the invention utilize cheap commercially available reagents and are highly cost effective and amenable to scale-up. Additional high efficiency synthetic methods that utilize novel intermediates as well as the synthesis of these intermediates are also provided. Furthermore, the invention also provides methods for designing novel and water-soluble TBEs.
    提供了新型三环双烯酮衍生物(TBEs)以及制备此类TBEs的方法。还提供了用于预防和/或治疗癌症、阿尔茨海默病、帕森病、多发性硬化症、肌萎缩侧索硬化、类风湿性关节炎、炎症性肠病以及所有其他疾病的方法,这些疾病的发病机制被认为涉及过量产生一氧化氮(NO)或前列腺素或iNOS或COX-2基因基因产物的过度表达。此外,本发明的TBE化合物的合成方法利用廉价的商业可获得试剂,具有高成本效益且易于扩展。还提供了利用新型中间体的高效合成方法以及这些中间体的合成。此外,本发明还提供了设计新型溶性TBEs的方法。
  • Synthetic Studies on Quassinoids:  Total Synthesis and Biological Evaluation of (+)-Des-<scp>d</scp>-chaparrinone
    作者:Paul A. Grieco、Jason D. Speake
    DOI:10.1021/jo980571y
    日期:1998.8.1
    A total synthesis of des-D-chaparrinone (2), which lacks the ring D delta-lactone of (-)-chaparrinone (1) has been developed. The synthesis commences with the known, readily available tricyclic ketone 3 (R = Me). Elaboration of the configuration at C(5) followed by resolution of 6 employing 2(R),3(R)-2,3-butanediol gave rise to 9. Installation of the ring C functionality provided 15 which was transformed
    已经开发了缺少(-)-查帕瑞酮(1)的D环δ-内酯的des-D-查帕瑞酮(2)的全合成。合成从已知的,容易获得的三环酮3(R = Me)开始。阐述在C(5)处的构型,然后使用2(R),3(R)-2,3-丁二醇拆分为6,得到9。环C官能度的安装提供了15,其转化为三环二酮25引入环A官能团得到29,其在暴露于三氯化铝碘化钠时直接产生(+)-des-D-查帕瑞酮(2)。生物学研究表明(+)-2没有任何实体瘤活性。
  • Remote oxidation of perhydrophenanthrenes by template-directed hydrogen atom abstraction.
    作者:Sean Michael Kerwin、Clayton H. Heathcock
    DOI:10.1021/jo00040a050
    日期:1992.7
    The use of Breslow's remote functionalization paradigm for installation of an axial C-7 hydroxy group into a perhydrophenanthrene nucleus, with a view toward synthesis of bruceantin (1), has been investigated. The substrates that were evaluated were 9a-c, 11, 17, 18, and 20. Substrates 9a-c all undergo preferential functionalization at C-12. After oxidative cleavage of the initial photoproduct, ketones 18a-c were obtained in yields of 18-26% (36-41%, based on unrecovered starting material). Unsaturated substrate 11 undergoes remote functionalization exclusively at the secondary allylic position (C-12); enone 20 is obtained in 83% overall yield after oxidative cleavage of the initial photoadduct, 19a,b. Thus, in this system, C-12 appears to be the preferred site of intramolecular functionalization. Attempts to block reaction at this position by the use of saturated ketone 18, the derived ketal 17, or enone 20, were all unsuccessful. In the case of 18 the only photoproduct was the intramolecular pinacol. Enone 20 gave an exceedingly complex mixture, consisting of many products. Ketal 17 afforded the unusual macrocyclic lactone 21 in 33% yield. The main conclusion of this study is that it is difficult to extrapolate from the excellent regioselectivity observed by Breslow in the steroid system to the trans-anti-trans perhydrophenanthrene system, which is only slightly less rigid. A second factor which we believe is important in the system we have studied is the apparently minor perturbation of having an equatorial substituent at C-4. We postulate that this substituent, which was not present in the model steroidal systems investigated previously by Breslow, disfavors functionalization at C-7.
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