pyralomicin 2a | 139636-00-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: pyralomicin 2a
• 英文别名: 2,6-dichloro-1-[(2R,3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-methoxyoxan-2-yl]-5-hydroxy-8-methylchromeno[2,3-b]pyrrol-4-one
• CAS: 139636-00-3
• 化学式: C₁₉H₁₉Cl₂NO₈
• 分子量: 460.268
• InChiKey: ZXYNPGZWOMFXHV-JUTSKPLTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  30
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  131
• 氢给体数：
  4
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  4-溴苯甲酰氯 、 pyralomicin 2a 以 吡啶 为溶剂， 反应 24.0h， 生成 2'-O-p-bromobenzoylpyralomicin 2a
  参考文献：
  名称：

  Pyralomicins, Novel Antibiotics from Microtetraspora spiralis. IV. Absolute Configuration.

  摘要：

  The absolute configurations of pyralomicin la and pyralomicin 2a were determined by X-ray crystallographic analyses of crystalline 7'-O-p-bromobenzoylpyralomicin la and 2'-O-p-bromobenzoylpyralomicin 2a derived from pyralomicin la and pyralomicin 2a using anomalous scattering of the bromine atom. The absolute configurations of pyralomicins 1b-1d and 2b-2c were suggested to be the same as pyralomicin la and pyralomicin 2a, respectively, by comparing the circular dichroism spectra.

  DOI：

  10.7164/antibiotics.50.147

文献信息

• Pyralomicins, Novel Antibiotics from Microtetraspora spiralis. IV. Absolute Configuration.
  作者：NAOTO KAWAMURA、HIKARU NAKAMURA、RYUICHI SAWA、YOSHIKAZU TAKAHASHI、TSUTOMU SAWA、HIROSHI NAGANAWA、TOMIO TAKEUCHI

  DOI：10.7164/antibiotics.50.147

  日期：——

  The absolute configurations of pyralomicin la and pyralomicin 2a were determined by X-ray crystallographic analyses of crystalline 7'-O-p-bromobenzoylpyralomicin la and 2'-O-p-bromobenzoylpyralomicin 2a derived from pyralomicin la and pyralomicin 2a using anomalous scattering of the bromine atom. The absolute configurations of pyralomicins 1b-1d and 2b-2c were suggested to be the same as pyralomicin la and pyralomicin 2a, respectively, by comparing the circular dichroism spectra.