(3b)-(3'b)-3,3'-氧基二-胆甾-5-烯 | 2469-23-0

• 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
• 中文名称: (3b)-(3'b)-3,3'-氧基二-胆甾-5-烯
• 英文名称: Dicholesterylether
• 英文别名: Bicholesterylaether；Di-cholesterylether；Cholesteryl ether；3-[[10,13-dimethyl-17-(6-methylheptan-2-yl)-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-10,13-dimethyl-17-(6-methylheptan-2-yl)-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene
• CAS: 2469-23-0
• 化学式: C₅₄H₉₀O
• 分子量: 755.308
• InChiKey: ZFGOPJASRDDARH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  18.1
• 重原子数：
  55
• 可旋转键数：
  12
• 环数：
  8.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (3b)-(3'b)-3,3'-氧基二-胆甾-5-烯 在 乙醚 、 溴 、 溶剂黄146 作用下， 生成 bis-(5,6β-dibromo-5α-cholestanyl-(3β))-ether
  参考文献：
  名称：

  DEPROTECTION OF TRIMETHYLSILYL AND OF TETRAHYDROPYRANYL ETHERS AND OF ETHYLENE ACETALS WITH BENZYLTRIPHENYLPHOSPHONIUM CHLOROCHROMATE

  摘要：

  DOI：

  10.1080/00304940209355753
• 作为产物：
  描述：

  cholesterol 生成 (3b)-(3'b)-3,3'-氧基二-胆甾-5-烯
  参考文献：
  名称：

  Hathaway; Koch, Journal of Biological Chemistry, 1935, vol. 108, p. 773,775

  摘要：

  DOI：

文献信息

• The theory of modules of separably closed fields 1
  作者：Pilar Dellunde、Françoise Delon、Françoise Point

  DOI：10.2178/jsl/1190150144

  日期：2002.9

  We consider separably closed fields of characteristic p > 0 and fixed imperfection degree as modules over a skew polynomial ring. We axiomatize the corresponding theory and we show that it is complete and that it admits quantifier elimination in the usual module language augmented with additive functions which are the analog of the p-component functions.

  我们考虑特征为大于0的可分闭域，并将其视为固定不完全度的模块，作为一个斜多项式环上的模块。我们对应的理论进行了公理化，并展示它是完备的，并且在通常的模块语言中加入模拟p-分量函数的可加函数后，它支持量词消除。
• On the binding group in simple theories
  作者：Ziv Shami、Frank O. Wagner

  DOI：10.2178/jsl/1190150145

  日期：2002.9

  We show that if p is a real type which is almost internal in a formula φ in a simple theory, then there is a type p′ interalgebraic with a finite tuple of realizations of p, which is generated over φ. Moreover, the group of elementary permutations of p′ over all realizations of φ is type-definable.

  我们展示了如果p是一个在简单理论中几乎内部的实类型，那么存在一个类型p'，它与p的有限元组的实现内代数相关，并且在φ上生成。此外，p'的所有φ的实现上的元素置换群是类型可定义的。
• On steady-state simulation of some weak regenerative networks
  作者：Evsei Morozov、Irina Aminova

  DOI：10.1002/ett.4460130412

  日期：2002.7

  AbstractWe discuss the possibilities of the so‐called weak regeneration in the steady‐state analysis of multiserver queues and some Jackson‐type and multiclass queueing networks when classical regenerative simulation is ineffective. A few constructions of weak regeneration for open Jackson‐type and multiclass queueing networks are given in an explicit form. Conditions are found when efficiency of weak regeneration (expressed in the simulation time needed for confidence estimation with a given precision) stays very high while the efficiency of classical regeneration is rapidly decreasing. Numerical results are also considered which illustrate an advantage of the weak regeneration in simulation of some tandem queueing networks.
• Beitr�ge zur Kenntniss des Cholesterins
  作者：J. Mauthner、W. Suida

  DOI：10.1007/bf01519194

  日期：1896.12
• Pickard; Yates, Journal of the Chemical Society, 1908, vol. 93, p. 1678,1681
  作者：Pickard、Yates

  DOI：——

  日期：——