(3R,4S,5S,6R,7R,9R,10E,11S,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-trimethylsilyloxyoxan-2-yl]oxy-14-ethyl-12,13-dihydroxy-7-methoxy-4-[(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-trimethylsilyloxyoxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-10-pyrimidin-2-yloxyimino-oxacyclotetradecan-2-one | 930287-48-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (3R,4S,5S,6R,7R,9R,10E,11S,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-trimethylsilyloxyoxan-2-yl]oxy-14-ethyl-12,13-dihydroxy-7-methoxy-4-[(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-trimethylsilyloxyoxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-10-pyrimidin-2-yloxyimino-oxacyclotetradecan-2-one
• CAS: 930287-48-2
• 化学式: C₄₈H₈₈N₄O₁₃Si₂
• 分子量: 985.417
• InChiKey: UHBMOVIWZCLQMJ-AUYAXHDJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.81
• 重原子数：
  67
• 可旋转键数：
  14
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  191
• 氢给体数：
  2
• 氢受体数：
  17

反应信息

• 作为反应物：
  描述：

  (3R,4S,5S,6R,7R,9R,10E,11S,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-trimethylsilyloxyoxan-2-yl]oxy-14-ethyl-12,13-dihydroxy-7-methoxy-4-[(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-trimethylsilyloxyoxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-10-pyrimidin-2-yloxyimino-oxacyclotetradecan-2-one 在 甲酸 、 sodium hydrogensulfite 作用下， 以 乙醇 、 水 为溶剂， 反应 8.0h， 生成 克拉霉素
  参考文献：
  名称：

  Preparation of clarithromycin. Selective 6-O-methylation of the novel erythromycin A 9-O-(2-pyrimidyl)oxime

  摘要：

  A new method for the preparation of clarithromycin is described through the highly regioselective O-methylation at C(6)-OH of the novel derivative 9-pyrimidyloxime erythromycin A. The facile synthesis of 6,11-O-dimethyl- and 6,11,12-O-trimethyl erythromycin A is also reported. These compounds are useful as standards to assess clarithromycin purity in quality control processes. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2006.12.124
• 作为产物：
  描述：

  erythromycin A (9E)-oxime hydrochloride 在 氢氧化钾 、 potassium tert-butylate 、 三甲基硅咪唑 作用下， 以 二氯甲烷 、 二甲基亚砜 为溶剂， 反应 4.0h， 生成 (3R,4S,5S,6R,7R,9R,10E,11S,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-trimethylsilyloxyoxan-2-yl]oxy-14-ethyl-12,13-dihydroxy-7-methoxy-4-[(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-trimethylsilyloxyoxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-10-pyrimidin-2-yloxyimino-oxacyclotetradecan-2-one
  参考文献：
  名称：

  Preparation of clarithromycin. Selective 6-O-methylation of the novel erythromycin A 9-O-(2-pyrimidyl)oxime

  摘要：

  A new method for the preparation of clarithromycin is described through the highly regioselective O-methylation at C(6)-OH of the novel derivative 9-pyrimidyloxime erythromycin A. The facile synthesis of 6,11-O-dimethyl- and 6,11,12-O-trimethyl erythromycin A is also reported. These compounds are useful as standards to assess clarithromycin purity in quality control processes. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2006.12.124