(1R,2S,4S,5'R,6R,7S,8R,9S,10R,12S,13S,18S)-10-hydroxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16-one | 4235-32-9

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: (1R,2S,4S,5'R,6R,7S,8R,9S,10R,12S,13S,18S)-10-hydroxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16-one
• CAS: 4235-32-9
• 化学式: C₂₇H₄₂O₄
• 分子量: 430.628
• InChiKey: OSMUXUOZBJAURW-KXZFVKGTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  31
• 可旋转键数：
  0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.96
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (1R,2S,4S,5'R,6R,7S,8R,9S,10R,12S,13S,18S)-10-hydroxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16-one 在 4-二甲氨基吡啶 、 oxodiperoxomolybdenum-pyridine-dimethylpyrrolidinone 、 三乙胺 、 lithium diisopropyl amide 作用下， 以 甲苯 为溶剂， 反应 54.83h， 生成 [(5S,5'R,6S,9R,10R,13S,14R,17S,23S,24S,26R,27S,28R,29S,30R,32S,34S,35R,38S)-5,5',9,23,27,29-hexamethyl-10-[(2R)-6-methylheptan-2-yl]spiro[31-oxa-2,20-diazadecacyclo[19.18.0.03,19.05,17.06,14.09,13.023,38.024,35.027,34.028,32]nonatriaconta-1,3(19),20-triene-30,2'-oxane]-26-yl] acetate
  参考文献：
  名称：

  Synthesis and Biological Activity Of Unsymmetrical Bis-Steroidal Pyrazines Related to the Cytotoxic Marine Natural Product Cephalostatin 1

  摘要：

  A mild, high-yielding synthesis of symmetrical steroidal pyrazines was achieved from the dimerization of 2-amino-3-ketosteroids, which were produced in situ from the triphenylphosphine-water reduction of the corresponding alpha-azido ketone. 2-Azidocholestan-3-one gave the dimeric steroidal pyrazine very cleanly, and two known dimeric pyrazines based on androstanone were also made using this methodology. Both C-2-symmetric geometric isomers of the dimeric steroidal pyrazine derived from cholestane were prepared by reaction of 2,3-diaminocholestane with cholestane-2,3-dione. A route to unsymmetrical bis-steroidal pyrazines was based on the observation that alpha-acetoxy ketones react with alpha-amino oximes directly with no need for oxidation of intermediate dihydropyrazines. Heating either 2 beta,17 beta-dihydroxyandrostan-3-one diacetate or 2 beta,17 beta-dihydroxyhecogenin-3-one diacetate with 2-amino-3-methoxyiminocholestane in toluene at 145 degrees C gave the corresponding unsymmetrical pyrazine in moderate yield. Five of the steroidal pyrazines were evaluated in the National Cancer Institute's new in vitro, disease-oriented antitumor screen, but none showed sufficient activity to warrant in vivo investigation.

  DOI：

  10.1021/jo00101a052
• 作为产物：
  描述：

  龙舌兰皂苷乙酯 在 铂 sodium tetrahydroborate 、 氧气 、 potassium carbonate 作用下， 以 四氢呋喃 、 甲醇 、 乙酸乙酯 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 反应 30.0h， 生成 (1R,2S,4S,5'R,6R,7S,8R,9S,10R,12S,13S,18S)-10-hydroxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16-one
  参考文献：
  名称：

  Synthesis and Biological Activity Of Unsymmetrical Bis-Steroidal Pyrazines Related to the Cytotoxic Marine Natural Product Cephalostatin 1

  摘要：

  A mild, high-yielding synthesis of symmetrical steroidal pyrazines was achieved from the dimerization of 2-amino-3-ketosteroids, which were produced in situ from the triphenylphosphine-water reduction of the corresponding alpha-azido ketone. 2-Azidocholestan-3-one gave the dimeric steroidal pyrazine very cleanly, and two known dimeric pyrazines based on androstanone were also made using this methodology. Both C-2-symmetric geometric isomers of the dimeric steroidal pyrazine derived from cholestane were prepared by reaction of 2,3-diaminocholestane with cholestane-2,3-dione. A route to unsymmetrical bis-steroidal pyrazines was based on the observation that alpha-acetoxy ketones react with alpha-amino oximes directly with no need for oxidation of intermediate dihydropyrazines. Heating either 2 beta,17 beta-dihydroxyandrostan-3-one diacetate or 2 beta,17 beta-dihydroxyhecogenin-3-one diacetate with 2-amino-3-methoxyiminocholestane in toluene at 145 degrees C gave the corresponding unsymmetrical pyrazine in moderate yield. Five of the steroidal pyrazines were evaluated in the National Cancer Institute's new in vitro, disease-oriented antitumor screen, but none showed sufficient activity to warrant in vivo investigation.

  DOI：

  10.1021/jo00101a052

文献信息

• Synthesis and Biological Activity Of Unsymmetrical Bis-Steroidal Pyrazines Related to the Cytotoxic Marine Natural Product Cephalostatin 1
  作者：Clayton H. Heathcock、Stephen C. Smith

  DOI：10.1021/jo00101a052

  日期：1994.11

  A mild, high-yielding synthesis of symmetrical steroidal pyrazines was achieved from the dimerization of 2-amino-3-ketosteroids, which were produced in situ from the triphenylphosphine-water reduction of the corresponding alpha-azido ketone. 2-Azidocholestan-3-one gave the dimeric steroidal pyrazine very cleanly, and two known dimeric pyrazines based on androstanone were also made using this methodology. Both C-2-symmetric geometric isomers of the dimeric steroidal pyrazine derived from cholestane were prepared by reaction of 2,3-diaminocholestane with cholestane-2,3-dione. A route to unsymmetrical bis-steroidal pyrazines was based on the observation that alpha-acetoxy ketones react with alpha-amino oximes directly with no need for oxidation of intermediate dihydropyrazines. Heating either 2 beta,17 beta-dihydroxyandrostan-3-one diacetate or 2 beta,17 beta-dihydroxyhecogenin-3-one diacetate with 2-amino-3-methoxyiminocholestane in toluene at 145 degrees C gave the corresponding unsymmetrical pyrazine in moderate yield. Five of the steroidal pyrazines were evaluated in the National Cancer Institute's new in vitro, disease-oriented antitumor screen, but none showed sufficient activity to warrant in vivo investigation.