(4¹S,13aS)-13a-ethyl-2,3,4¹,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carbaldehyde | 53412-07-0

• 分子结构分类: 有机化合物 - 生物碱及其衍生物 - Eburnan型生物碱
• 英文名称: (4¹S,13aS)-13a-ethyl-2,3,4¹,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carbaldehyde
• 英文别名: (15S,19S)-15-ethyl-1,11-diazapentacyclo[9.6.2.02,7.08,18.015,19]nonadeca-2,4,6,8(18),16-pentaene-17-carbaldehyde
• CAS: 53412-07-0
• 化学式: C₂₀H₂₂N₂O
• 分子量: 306.407
• InChiKey: NDZVZZBOSPYFTQ-UXHICEINSA-N

物化性质

• 沸点：
  400.9±45.0 °C(predicted)
• 密度：
  1.30±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  23
• 可旋转键数：
  2
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  25.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (4¹S,13aS)-13a-ethyl-2,3,4¹,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carbaldehyde 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 反应 0.5h， 以75%的产率得到eburnamenine-14-ylmethanol
  参考文献：
  名称：

  Asymmetric Total Synthesis of (+)-Apovincamine and a Formal Synthesis of (+)-Vincamine. Demonstration of a Practical “Asymmetric Linkage” between Aromatic Carboxylic Acids and Chiral Acyclic Substrates

  摘要：

  Asymmetric syntheses of (+)-apovincamine (1a) and (+)-vincamine (2) are described. Construction of the pentacyclic diene lactam 14, a pivotal intermediate for synthesis of the cis-fused vincane-type alkaloids, began by Birch reduction-alkylation of the chiral benzamide 3 to give the 6-ethyl-1-methoxy-4-methyl-1,4-cyclohexadiene 4. Conversion of 4 to 2,5-cyclohexadienone 5 (92% overall yield from 3) and HPLC analysis of 5 demonstrated the diastereomeric purity resulting from the Birch reduction-alkylation to be >100:1. Dienone 5 was converted to butyrolactone 9 (47% overall yield from 3), and 9 was coupled with tryptamine (10) to give the amide 11a. Amido keto aldehyde 13 was obtained from 11a, and acid-catalyzed tricyclization and subsequent base-induced elimination of MeOH provided the desired cis-fused pentacyclic diene lactam 14. Examination of the two-step process 13 --> 14 revealed a novel base-induced epimerization at C(21) which served to interconvert 14 and 17, possibly by the involvement of a homoenolate. Diene lactam 14 was converted to (+)-apovincaminal 20a, an intermediate in the synthesis of (+)-apovincamine (1a) reported by Winterfeldt and co-workers. A new procedure for conversion of 20a to 1a involves conversion of 20a to the acetal 20b and treatment of 20b with NBS/AIBN in CCl4. The conversion of 1a to vincamine (2) has been reported by Oppolzer and co-workers.

  DOI：

  10.1021/jo961603p
• 作为产物：
  描述：

  长春西汀 在 manganese(IV) oxide 、 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 0.5h， 生成 (4¹S,13aS)-13a-ethyl-2,3,4¹,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carbaldehyde
  参考文献：
  名称：

  DIAZA-BENZOFLUORANTHRENE COMPOUNDS

  摘要：

  揭示了一系列二氮杂苯并芴类化合物。本发明特别涉及一种由式(I)表示的化合物，其药学上可接受的盐或互变异构体。

  公开号：

  US20180016270A1

文献信息

• Diaza-benzofluoranthrene compounds
  申请人：HARBIN PHARMACEUTICAL GROUP CO., LTD. GENERAL PHARMACEUTICAL FACTORY

  公开号：US10017507B2

  公开（公告）日：2018-07-10

  Disclosed are a series of diaza-benzofluoranthrene compounds. The present invention particularly relates to a compound represented by formula (I), pharmaceutically acceptable salts or tautomers thereof.

  本发明公开了一系列重氮苯并菲化合物。本发明尤其涉及由式（I）代表的化合物、其药学上可接受的盐或同系物。
• [EN] DIAZA-BENZOFLUORANTHRENE COMPOUNDS<br/>[FR] COMPOSÉS DIAZA-BENZOFLUORANTHRÈNE<br/>[ZH] 二氮杂-苯并荧蒽类化合物
  申请人：MEDSHINE DISCOVERY INC

  公开号：WO2016124129A1

  公开（公告）日：2016-08-11

  本发明公开了一系列二氮杂-苯并荧蒽类化合物，具体涉及式(Ⅰ)所示化合物、其药学上可接受的盐或其互变异构体。
• DIAZA-BENZOFLUORANTHRENE COMPOUNDS
  申请人：HARBIN PHARMACEUTICAL GROUP CO., LTD. GENERAL PHARMACEUTICAL FACTORY

  公开号：US20180016270A1

  公开（公告）日：2018-01-18

  Disclosed are a series of diaza-benzofluoranthrene compounds. The present invention particularly relates to a compound represented by formula (I), pharmaceutically acceptable salts or tautomers thereof.

  揭示了一系列二氮杂苯并芴类化合物。本发明特别涉及一种由式(I)表示的化合物，其药学上可接受的盐或互变异构体。
• Asymmetric Total Synthesis of (+)-Apovincamine and a Formal Synthesis of (+)-Vincamine. Demonstration of a Practical “Asymmetric Linkage” between Aromatic Carboxylic Acids and Chiral Acyclic Substrates
  作者：Arthur G. Schultz、William P. Malachowski、You Pan

  DOI：10.1021/jo961603p

  日期：1997.3.1

  Asymmetric syntheses of (+)-apovincamine (1a) and (+)-vincamine (2) are described. Construction of the pentacyclic diene lactam 14, a pivotal intermediate for synthesis of the cis-fused vincane-type alkaloids, began by Birch reduction-alkylation of the chiral benzamide 3 to give the 6-ethyl-1-methoxy-4-methyl-1,4-cyclohexadiene 4. Conversion of 4 to 2,5-cyclohexadienone 5 (92% overall yield from 3) and HPLC analysis of 5 demonstrated the diastereomeric purity resulting from the Birch reduction-alkylation to be >100:1. Dienone 5 was converted to butyrolactone 9 (47% overall yield from 3), and 9 was coupled with tryptamine (10) to give the amide 11a. Amido keto aldehyde 13 was obtained from 11a, and acid-catalyzed tricyclization and subsequent base-induced elimination of MeOH provided the desired cis-fused pentacyclic diene lactam 14. Examination of the two-step process 13 --> 14 revealed a novel base-induced epimerization at C(21) which served to interconvert 14 and 17, possibly by the involvement of a homoenolate. Diene lactam 14 was converted to (+)-apovincaminal 20a, an intermediate in the synthesis of (+)-apovincamine (1a) reported by Winterfeldt and co-workers. A new procedure for conversion of 20a to 1a involves conversion of 20a to the acetal 20b and treatment of 20b with NBS/AIBN in CCl4. The conversion of 1a to vincamine (2) has been reported by Oppolzer and co-workers.