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20-epi-lochneridine

中文名称
——
中文别名
——
英文名称
20-epi-lochneridine
英文别名
20-epilochneridine;methyl (1R,11R,12R,17S)-12-ethyl-12-hydroxy-8,14-diazapentacyclo[9.5.2.01,9.02,7.014,17]octadeca-2,4,6,9-tetraene-10-carboxylate
20-epi-lochneridine化学式
CAS
——
化学式
C20H24N2O3
mdl
——
分子量
340.422
InChiKey
DGKIJZKKTDPACC-NNSOFZPJSA-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):
    2
  • 重原子数:
    25
  • 可旋转键数:
    3
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.55
  • 拓扑面积:
    61.8
  • 氢给体数:
    2
  • 氢受体数:
    5

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
    • 1
    • 2

反应信息

  • 作为反应物:
    描述:
    20-epi-lochneridine 在 lithium aluminium tetrahydride 、 sodium cyanoborohydride 作用下, 以 溶剂黄146 为溶剂, 生成
    参考文献:
    名称:
    三取代烯烃的Markovnikoff加氢硼化
    摘要:
    akuammicine的硼氢化-氧化主要产生叔醇双键的硼氢化-氧化是众所周知的抗马尔可夫尼科夫过程1,2。在将该方法应用于吲哚生物碱领域的过程中,令人惊讶地观察到随后的三取代烯烃的Markovnikoff水合:
    DOI:
    10.1016/s0040-4039(00)87076-8
  • 作为产物:
    描述:
    (E)-4-methylenehex-2-enal 在 palladium on activated charcoal 四氧化锇钾硼氢四丁基氟化铵氢气 、 ammonium formate 、 potassium carbonate三乙胺对苯二酚苯甲酸三氟乙酸酐 作用下, 以 四氢呋喃吡啶甲醇乙醇二氯甲烷乙酸乙酯 为溶剂, 反应 56.67h, 生成 20-epi-lochneridine
    参考文献:
    名称:
    Syntheses of Strychnan- and Aspidospermatan-Type Alkaloids. 11. Total Syntheses of (−)-Lochneridine and (−)- and Racemic 20-epi-Lochneridine
    摘要:
    Enantioselective syntheses of (-)-lochneridine (1) and (-)-epi-lochneridine (2) were obtained by two alternative C-20 diastereoselective syntheses of the respective pentacyclic (3aS,5S,11bR)-methyl 12-oxo-3,5-ethano-2,3,3a,4,5,7-hexahydro-3H-pyrrolo[2,3-d]carbazole-6-carboxylate ((-)-8) and tetracyclic methyl (2S,3aS,5R,11bR))-3-benzyl-2,3,3a,4,5,7-hexahydro-5-(2-(1-butenyl))-1H-pyrrolo[2,3d]carbazole-6-carboxylate ((-)-12b) precursors from tryptophan derived 2-[(methoxycarbonyl)methyl]3-[2(S)-(methoxy or benzyloxycarbonyl)-2-(N-b-benzyl)aminoethyl]indole (15 or 16). While a modified Grignard reaction of the ketone (-)-8 provided (-)-lochneridine (1), dihydroxylation and cyclization of the olefin (-)-12b gave its C-20 epimer (2).
    DOI:
    10.1021/jo981401o
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文献信息

  • A General Synthetic Entry to <i>Strychnos</i> Alkaloids of the Curan Type via a Common 3a-(2-Nitrophenyl)hexahydroindol-4-one Intermediate. Total Syntheses of (±)- and (−)-Tubifolidine, (±)-Akuammicine, (±)-19,20-Dihydroakuammicine, (±)-Norfluorocurarine, (±)-Echitamidine, and (±)-20-Epilochneridine<sup>1</sup>
    作者:Josep Bonjoch、Daniel Solé、Silvina García-Rubio、Joan Bosch
    DOI:10.1021/ja970347a
    日期:1997.8.1
    general strategy for the synthesis of pentacyclic Strychnos alkaloids with the curan skeleton has been developed. It utilizes 3a-(2-nitrophenyl)hexahydroindol-4-one (23), which was prepared from 2-allyl-2-(2-nitrophenyl)-1,3-cyclohexanedione (15), as the common, pivotal intermediate. Three different procedures have been employed for the closure of the bridged piperidine D ring from 23: (i) an intramolecular
    已开发出合成具有curan 骨架的五环马钱子生物碱的一般策略。它使用由 2-烯丙基-2-(2-硝基苯基)-1,3-环己二酮 (15) 制备的 3a-(2-硝基苯基)六氢吲哚-4-酮 (23) 作为常见的关键中间体。已采用三种不同的程序来闭合来自 23 的桥连哌啶 D 环: (i) 分子内迈克尔型共轭物加成;(ii) Ni(COD)2 促进的双环化,在单个合成步骤中组装 B 和 D 环,以及 (iii) 烯酮-炔丙基硅烷系统的分子内环化。必要时,根据所使用的程序,在 C-16 处引入氧化的单碳取代基,关闭吲哚环,和/或调整 C-20 二碳链的功能构成了标题生物碱合成路线的最后阶段。涉及炔丙基硅烷环化的过程已成功扩展到对映特异性……
  • Syntheses of Strychnan- and Aspidospermatan-Type Alkaloids. 11. Total Syntheses of (−)-Lochneridine and (−)- and Racemic 20-<i>epi</i>-Lochneridine
    作者:Martin E. Kuehne、Feng Xu
    DOI:10.1021/jo981401o
    日期:1998.12.1
    Enantioselective syntheses of (-)-lochneridine (1) and (-)-epi-lochneridine (2) were obtained by two alternative C-20 diastereoselective syntheses of the respective pentacyclic (3aS,5S,11bR)-methyl 12-oxo-3,5-ethano-2,3,3a,4,5,7-hexahydro-3H-pyrrolo[2,3-d]carbazole-6-carboxylate ((-)-8) and tetracyclic methyl (2S,3aS,5R,11bR))-3-benzyl-2,3,3a,4,5,7-hexahydro-5-(2-(1-butenyl))-1H-pyrrolo[2,3d]carbazole-6-carboxylate ((-)-12b) precursors from tryptophan derived 2-[(methoxycarbonyl)methyl]3-[2(S)-(methoxy or benzyloxycarbonyl)-2-(N-b-benzyl)aminoethyl]indole (15 or 16). While a modified Grignard reaction of the ketone (-)-8 provided (-)-lochneridine (1), dihydroxylation and cyclization of the olefin (-)-12b gave its C-20 epimer (2).
  • The markovnikoff hydroboration of a trisubstituted olefin
    作者:C Mirand、G Massiot、L Le Men-Olivier、J Levy
    DOI:10.1016/s0040-4039(00)87076-8
    日期:1982.1
    on of double bonds is a well known anti-Markovnikoff process1,2. In the course of applications of this method to the indole alkaloid field, the following Markovnikoff hydration of a trisubstituted olefin was surprisingly observed :
    akuammicine的硼氢化-氧化主要产生叔醇双键的硼氢化-氧化是众所周知的抗马尔可夫尼科夫过程1,2。在将该方法应用于吲哚生物碱领域的过程中,令人惊讶地观察到随后的三取代烯烃的Markovnikoff水合:
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