(3S)-1,2,3,6,7,7A,10,14,14ab,14b-十氢-6a-羟基-3Α,13-二甲氧基-5,5,7ab,9,14ba-五甲基-12H-3b,5ab-环氧-5H-呋喃并[3,4-I]氧杂卓并[4,3-a]氧杂蒽-12-酮 | 81543-02-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 中文名称: (3S)-1,2,3,6,7,7A,10,14,14ab,14b-十氢-6a-羟基-3Α,13-二甲氧基-5,5,7ab,9,14ba-五甲基-12H-3b,5ab-环氧-5H-呋喃并[3,4-I]氧杂卓并[4,3-a]氧杂蒽-12-酮
• 英文名称: austalide B
• 英文别名: (1R,2R,4S,16R,17R,20S)-2-hydroxy-13,20-dimethoxy-4,7,17,22,22-pentamethyl-5,10,21,23-tetraoxahexacyclo[18.2.1.01,17.04,16.06,14.08,12]tricosa-6(14),7,12-trien-11-one
• CAS: 81543-02-4
• 化学式: C₂₆H₃₄O₈
• 分子量: 474.551
• InChiKey: ZVFMDVFPBVFGPG-BLQNBILZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  34
• 可旋转键数：
  2
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  92.7
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  (3S,5aR,6S,7aS,14aR,14bR)-1,2,3,6,7,7a,10,14,14a,14b-decahydro-3,13-dimethoxy-5,5,7a,9,14b-pentamethyl-6-<<2-(trimethylsilyl)ethoxy>methoxy>-12H-3,5a-epoxy-5H-furo<3,4-i>oxepino<4,9-a>xanthene-12-one 在 sodium tetrahydroborate 、 四丙基高钌酸铵 、 四丁基氟化铵 作用下， 以 甲醇 、 六甲基磷酰三胺 、 二氯甲烷 为溶剂， 生成 (3S)-1,2,3,6,7,7A,10,14,14ab,14b-十氢-6a-羟基-3Α,13-二甲氧基-5,5,7ab,9,14ba-五甲基-12H-3b,5ab-环氧-5H-呋喃并[3,4-I]氧杂卓并[4,3-a]氧杂蒽-12-酮
  参考文献：
  名称：

  Enantioselective synthesis of natural (-)-austalide B, an unusual ortho ester metabolite produced by toxigenic cultures of Aspergillus ustus

  摘要：

  DOI：

  10.1021/ja00085a075

文献信息

• Structures of the austalides A–E, five noval toxic metabolites from Aspergillus ustus
  作者：R. Marthinus Horak、Pieter S. Steyn、Petrus H. Van Rooyen、Robert Vleggaar、Christiaan J. Rabie

  DOI：10.1039/c39810001265

  日期：——

  The structures of austalides A–E, five new mycotoxins isolated from cultures of Aspergillus ustus, are based on the X-ray crystallographic study of austalide A, chemical derivatization, and correlation of their 13C and 1H n.m.r spectral data.

  Austalides A–E的结构是从曲霉菌培养物中分离得到的五种新霉菌毒素，其结构基于Austalide A的X射线晶体学研究，化学衍生化及其13 C和1 H nmr光谱数据的相关性。
• Total Synthesis of (-)-Austalide B. A Generic Solution to Elaboration of the Pyran/p-Cresol/Butenolide Triad
  作者：Leo A. Paquette、Ting-Zhong Wang、Matthew R. Sivik

  DOI：10.1021/ja00104a012

  日期：1994.12

  The toxic meroterpenoid (-)-austalide B has been prepared in its natural form by chemical modification of the readily available optically active enedione 11. Following stereocontrolled Robinson annulation to give 13 and fully regiocontrolled gem-dimethylation of this intermediate, the highly functionalized tetracyclic ortho ester 22 was produced in four additional steps. At this point, it proved an easy matter to obtain 23 by Baeyer-Villiger oxidation. For the purpose of annealing rings E and F, carbomethoxy trinate 41 was prepared and coupled to 42 through the agency of Pd-2(dba)(3) and (furyl)(3)P. With arrival at 39, it proved possible by sequential intramolecular Claisen condensation, O-methylation, and modest warming to produce 50. Deprotection of the secondary hydroxyl and inversion of its configuration delivered synthetic austalide B, which exhibited melting point, specific rotation, infrared, and NMR properties (H-1 and C-13) identical to the natural material obtained from South Africa.
• Enantioselective synthesis of natural (-)-austalide B, an unusual ortho ester metabolite produced by toxigenic cultures of Aspergillus ustus
  作者：Leo A. Paquette、Ting-Zhong Wang、Matthew R. Sivik

  DOI：10.1021/ja00085a075

  日期：1994.3