19,19-difluoroandrost-4-en-17β-ol | 129400-05-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 19,19-difluoroandrost-4-en-17β-ol
• 英文别名: (8S,9S,10S,13S,14S,17S)-10-(difluoromethyl)-13-methyl-2,3,6,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol
• CAS: 129400-05-1
• 化学式: C₁₉H₂₈F₂O
• 分子量: 310.428
• InChiKey: KWKOBGYDJILZHR-JLZSVDHQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  22
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  19,19-difluoroandrost-4-en-17β-ol 在 chromium(VI) oxide 、 硫酸 作用下， 以 丙酮 为溶剂， 反应 0.08h， 以60%的产率得到(8S,9S,10S,13S,14S)-10-(二氟甲基)-13-甲基-1,2,3,6,7,8,9,11,12,14,15,16-十二氢环戊烯并[a]菲-17-酮
  参考文献：
  名称：

  Synthesis and biochemical studies of 16- or 19-substituted androst-4-enes as aromatase inhibitors

  摘要：

  Androst-4-en-17-one derivatives [19-acetoxide 4, 16-bromides 14 and 15, 19,19-difluoride 18, and (19R,S)-19-acetylenic alcohol 25] and androst-4-en-17-beta-ol derivatives 3, 5, 10, 12, and 19 were synthesized and tested for their ability to inhibit aromatase in human placental microsomes. All the 17-oxo steroids, except compound 25 and 17,19-diol 3 of this series, were effective competitive inhibitors with apparent K(i)'s ranging from 170 to 455 nM. 19,19-Difluoro steroid 18 and 19-acetylenic alcohol 25, a weak competitive inhibitor (K(i) = 7.75-mu-M), caused a time-dependent, pseudo-first-order inactivation of aromatase activity with k(inact)'s of 0.0213 and 0.1053 min-1 for compounds 18 and 25, respectively. NADPH and oxygen were required for the time-dependent inactivation, and the substrate, androst-4-ene-3,17-dione, prevented it, but a nucleophile, L-cysteine, did not in each case. The results strongly suggest that aromatase would attack the 19-carbon of steroids 18 and 25.

  DOI：

  10.1021/jm00112a028
• 作为产物：
  描述：

  19,19-二氟雄甾-4-烯-3,17-二酮 在 氨 、 sodium 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 溶剂黄146 为溶剂， 反应 2.5h， 生成 19,19-difluoroandrost-4-en-17β-ol
  参考文献：
  名称：

  Synthesis and biochemical studies of 16- or 19-substituted androst-4-enes as aromatase inhibitors

  摘要：

  Androst-4-en-17-one derivatives [19-acetoxide 4, 16-bromides 14 and 15, 19,19-difluoride 18, and (19R,S)-19-acetylenic alcohol 25] and androst-4-en-17-beta-ol derivatives 3, 5, 10, 12, and 19 were synthesized and tested for their ability to inhibit aromatase in human placental microsomes. All the 17-oxo steroids, except compound 25 and 17,19-diol 3 of this series, were effective competitive inhibitors with apparent K(i)'s ranging from 170 to 455 nM. 19,19-Difluoro steroid 18 and 19-acetylenic alcohol 25, a weak competitive inhibitor (K(i) = 7.75-mu-M), caused a time-dependent, pseudo-first-order inactivation of aromatase activity with k(inact)'s of 0.0213 and 0.1053 min-1 for compounds 18 and 25, respectively. NADPH and oxygen were required for the time-dependent inactivation, and the substrate, androst-4-ene-3,17-dione, prevented it, but a nucleophile, L-cysteine, did not in each case. The results strongly suggest that aromatase would attack the 19-carbon of steroids 18 and 25.

  DOI：

  10.1021/jm00112a028

文献信息

• NUMAZAWA, MITSUTERU;MUTSUMI, AYAKO;HOSHI, KUMIKO;OSHIBE, MARIKO;ISHIKAWA,+, J. MED. CHEM., 34,(1991) N, C. 2496-2504
  作者：NUMAZAWA, MITSUTERU、MUTSUMI, AYAKO、HOSHI, KUMIKO、OSHIBE, MARIKO、ISHIKAWA,+

  DOI：——

  日期：——
• Synthesis and biochemical studies of 16- or 19-substituted androst-4-enes as aromatase inhibitors
  作者：Mitsuteru Numazawa、Ayako Mutsumi、Kumiko Hoshi、Mariko Oshibe、Etsushi Ishikawa、Hiroki Kigawa

  DOI：10.1021/jm00112a028

  日期：1991.8

  Androst-4-en-17-one derivatives [19-acetoxide 4, 16-bromides 14 and 15, 19,19-difluoride 18, and (19R,S)-19-acetylenic alcohol 25] and androst-4-en-17-beta-ol derivatives 3, 5, 10, 12, and 19 were synthesized and tested for their ability to inhibit aromatase in human placental microsomes. All the 17-oxo steroids, except compound 25 and 17,19-diol 3 of this series, were effective competitive inhibitors with apparent K(i)'s ranging from 170 to 455 nM. 19,19-Difluoro steroid 18 and 19-acetylenic alcohol 25, a weak competitive inhibitor (K(i) = 7.75-mu-M), caused a time-dependent, pseudo-first-order inactivation of aromatase activity with k(inact)'s of 0.0213 and 0.1053 min-1 for compounds 18 and 25, respectively. NADPH and oxygen were required for the time-dependent inactivation, and the substrate, androst-4-ene-3,17-dione, prevented it, but a nucleophile, L-cysteine, did not in each case. The results strongly suggest that aromatase would attack the 19-carbon of steroids 18 and 25.