3α,21-dihydroxy-5β-pregnane | 16109-79-8

• 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: 3α,21-dihydroxy-5β-pregnane
• 英文别名: 5β-Pregnan-3α,21-diol；5α-pregnanediol-(3β.21)；5α-Pregnandiol-(3β.21)；(10S)-3t-Hydroxy-10r.13c-dimethyl-17c-(2-hydroxy-aethyl)-(5cH.8cH.9tH.14tH)-hexadecahydro-1H-cyclopenta[a]phenanthren；3α-Hydroxy-10.13-dimethyl-17β-(2-hydroxy-aethyl)-5β-gonan；3α,21α-dihydroxy-5β-pregnan；(3R,5R,8S,9S,10S,13R,14S,17R)-17-(2-hydroxyethyl)-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol
• CAS: 16109-79-8
• 化学式: C₂₁H₃₆O₂
• 分子量: 320.516
• InChiKey: YAIJFQYJGNKTTJ-GHYMPNDLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  23
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  16β.17-dibromo-3β-acetoxy-5β-pregnanone-(20) 在 氢氧化钾 、 乙醚 、 乙醇 、 戊醇 、 sodium 作用下， 生成 3α,21-dihydroxy-5β-pregnane
  参考文献：
  名称：

  Nesting biology of Asian paper waspsPolistes chinensis antennalisPérez, and Australian paper waspsP. humilis(Fab.) (Hymenoptera: Vespidae) in northern New Zealand

  摘要：

  We recorded the numbers of cells, and where possible distinguished between cells containing pupating larvae and vacated cells, from 585 paper wasp nests from the northern North Island, New Zealand, plus nest site characteristics of 540 of these nests. Nests of Polistes chinensis antennalis and P. humilis developed at similar rates in early summer. P. c. antennalis nests were larger at the Post-emergence stage than those of P, humilis, and contained more vacated cells but less capped cells. All of the P. c. antennalis nests had reached the Post-emergence stage by February in Northland, but not in the other regions. P, c. antennalis nests in the Post-emergence stage were larger in Northland than further south, and contained the most capped or vacated cells. Nests of both species were usually found in northern-facing sites. Substrate did not affect nest size. Differences between the species in nest sites included greater use of manmade structures by P. c. antennalis; the use of leaves by P. humilis only; and a higher average nest site height in P. humilis. These differences in nest site selection may reduce competition between the species.

  DOI：

  10.1080/03014223.2000.9518225

文献信息

• US9673030B2
  申请人：——

  公开号：US9673030B2

  公开（公告）日：2017-06-06
• Nesting biology of Asian paper wasps<i>Polistes chinensis antennalis</i>Pérez, and Australian paper wasps<i>P. humilis</i>(Fab.) (Hymenoptera: Vespidae) in northern New Zealand
  作者：B. Kay Clapperton、Peter L. Lo

  DOI：10.1080/03014223.2000.9518225

  日期：2000.1

  We recorded the numbers of cells, and where possible distinguished between cells containing pupating larvae and vacated cells, from 585 paper wasp nests from the northern North Island, New Zealand, plus nest site characteristics of 540 of these nests. Nests of Polistes chinensis antennalis and P. humilis developed at similar rates in early summer. P. c. antennalis nests were larger at the Post-emergence stage than those of P, humilis, and contained more vacated cells but less capped cells. All of the P. c. antennalis nests had reached the Post-emergence stage by February in Northland, but not in the other regions. P, c. antennalis nests in the Post-emergence stage were larger in Northland than further south, and contained the most capped or vacated cells. Nests of both species were usually found in northern-facing sites. Substrate did not affect nest size. Differences between the species in nest sites included greater use of manmade structures by P. c. antennalis; the use of leaves by P. humilis only; and a higher average nest site height in P. humilis. These differences in nest site selection may reduce competition between the species.