(25S)-5β-Spirostan | 511-92-2

• 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: (25S)-5β-Spirostan
• 英文别名: 5β-sapogenin；(25S)-5beta-spirostan；(1R,2S,4S,5'S,6R,7S,8R,9S,12S,13S,18S)-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]
• CAS: 511-92-2
• 化学式: C₂₇H₄₄O₂
• 分子量: 400.645
• InChiKey: INLFWQCRAJUDCR-LTJXREHZSA-N

物化性质

• 沸点：
  483.4±18.0 °C(Predicted)
• 密度：
  1.06±0.1 g/cm3(Predicted)
• 熔点：
  214-216 °C

计算性质

• 辛醇/水分配系数(LogP)：
  8.2
• 重原子数：
  29
• 可旋转键数：
  0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (25S)-5β-Spirostan 在 chromium(VI) oxide 、 溶剂黄146 作用下， 生成 (25S)-16,22,23-trioxo-5β-cholestan-26-oic acid 、 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  Early detection of RhD status in pregnancies at risk of hemolytic disease of the newborn

  摘要：

  The aim of this work was to investigate the presence of the RHD gene in fetal cells obtained from amniotic fluid. We studied 65 samples of amniotic fluid, 11 from RhD-negative mothers sensitized with anti-D alloantibodies. The fetal origin of the DNA was confirmed with the analysis of 1 VNTR locus and 3 STR loci in DNA samples from amniotic fluid and maternal blood. The RHD genotyping was performed in non-contaminated samples (n=62) using a multiplex polymerase chain reaction strategy that yields three amplification products from RhD-positive phenotypes (intron 4 of both RHCE and RHD genes and exon 10 of the RHD gene) and 1 DNA fragment from RhD-negative phenotypes (intron 4 of the RHCE gene). We genotyped 54 RhD-positive fetuses (8 from RhD-negative sensitized mothers) and 8 RhD-negative fetuses (3 from RhD-negative sensitized mothers). The fetal DNA genotyping allows the diagnosis, from a single amniocentesis, of fetuses at real risk of hemolytic disease of the newborn. When the fetus is determined to be RhD-negative invasive procedures can be avoided.

  DOI：

  10.1007/s102380200010
• 作为产物：
  描述：

  丝兰提取物 在 chromium(VI) oxide 、 sodium hydroxide 、 一水合肼 、 溶剂黄146 、 二乙二醇 作用下， 生成 (25S)-5β-Spirostan
  参考文献：
  名称：

  Steroidal Sapogenins. XXXIV. Preparation of 3-Desoxysapogenins (20α- and 20β-Series)^2,3

  摘要：

  DOI：

  10.1021/ja01589a074

文献信息

• Deoxygenation of aliphatic acetate derivatives using electrogenerated organic amalgams
  作者：Lizeth M. Fragoso-Luna、Bernardo A. Frontana-Uribe、Jorge Cárdenas

  DOI：10.1016/s0040-4039(01)02384-x

  日期：2002.2

  An electrochemical deoxygenation reaction of aliphatic acetates has been developed, using electrogenerated organic amalgams (R4N-Hg). This methodology led us to obtain the deoxygenated product and the alcohol in a 1:1 ratio with total transformation of the starting compound. Examples Using the acetates of sarsasapogenin, diosgenin. 16-dehydro-pregnanolone and argentatine A, show the applications and some limitations of this electrochemical reaction. (C) 2002 Elsevier Science Ltd. All rights reserved.
• Sterols. XCVII. Sarsasapogenin
  作者：Russell E. Marker、Ewald Rohrmann

  DOI：10.1021/ja01861a053

  日期：1940.4
• Sarsasapogenin. IV. Further Observations Concerning Sarsasapogenoic Acid and Related Compounds
  作者：Louis F. Fieser、Edward M. Fry、R. Norman. Jones

  DOI：10.1021/ja01876a063

  日期：1939.7
• Sterols. LIX. Sarsasapogenin Derivatives. Desoxysarsasapogenin
  作者：Russell E. Marker、Ewald. Rohrmann

  DOI：10.1021/ja01874a081

  日期：1939.5
• Fieser et al., Journal of the American Chemical Society, 1939, vol. 61, p. 61 <1939> 1849, 1852
  作者：Fieser et al.

  DOI：——

  日期：——