(+)-(8R)-9-deacetyl-8-hydroxy-9-methyl-4-demethoxydaunomycinone | 130353-08-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 并四苯
• 英文名称: (+)-(8R)-9-deacetyl-8-hydroxy-9-methyl-4-demethoxydaunomycinone
• 英文别名: (7R,8R,9S)-6,7,8,9,11-pentahydroxy-9-methyl-8,10-dihydro-7H-tetracene-5,12-dione
• CAS: 130353-08-1
• 化学式: C₁₉H₁₆O₇
• 分子量: 356.332
• InChiKey: XULXKJFCOGUVML-QRVBRYPASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  26
• 可旋转键数：
  0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  135
• 氢给体数：
  5
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  (7R,8R,9S)-7-<(tert-butyldimethylsilyl)oxy>-7,8,9,10-tetrahydro-6,7,8,9-tetrahydroxy-8,9-O-isopropylidene-11-methoxy-9-methyl-5,12-naphthalenequinone 在 四丁基氟化铵 、 三氯化硼 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 3.5h， 生成 (+)-(8R)-9-deacetyl-8-hydroxy-9-methyl-4-demethoxydaunomycinone
  参考文献：
  名称：

  Anthracyclinones. 5. Glucosaccharino-1,4-lactone as a chiral template for the synthesis of new anthracyclinones

  摘要：

  Alkylation of dimethoxybenzene 16 with the chiral aldehyde derivative 14 prepared in six steps from alpha-D-glucosaccharino,1,4-lactone 3 afforded the adduct 17. After suitable transformation of 17, A ring closure was stereoselectively performed using SnCl4 at -70-degrees-C, giving 20. The tetralin-type quinone monoketal 23 obtained from 20 was then condensed with 27, and complete deprotection of anthracyclinones 28 and 29 led to 9-deacetyl-8(R)-hydroxy-9-methyl-4-demethoxydaunomycinone (6). On the other hand, 39, easily obtained from 14, was condensed with leucoquinizarin 31 to give after oxidation, intramolecular Marschalk reaction and benzylic deoxygenation, the corresponding 7-deoxyaglycon 7.

  DOI：

  10.1021/jo00001a073

文献信息

• DEGUIN, BRIGITTE;FLORENT, JEAN-CLAUDE;MONNERET, CLAUDE, J. ORG. CHEM., 56,(1991) N, C. 405-411
  作者：DEGUIN, BRIGITTE、FLORENT, JEAN-CLAUDE、MONNERET, CLAUDE

  DOI：——

  日期：——