(10R)-3c-Acetoxy-10r.13c-dimethyl-17c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-(9cH.14tH)-Δ^5.7-dodecahydro-1H-cyclopenta[a]phenanthren | 2874-25-1

• 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: (10R)-3c-Acetoxy-10r.13c-dimethyl-17c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-(9cH.14tH)-Δ^5.7-dodecahydro-1H-cyclopenta[a]phenanthren
• 英文别名: 3β-Acetoxy-24β_F-methyl-9β-cholestatrien-(5.7.22t)；O-Acetyl-isopyrocalciferol；9β-Ergostatrien-(5.7.22t)-yl-(3β)-acetat；Essigsaeure-(9β-ergostatrien-(5.7.22t)-yl-(3β)-ester)；3β-Acetoxy-9β-ergostatrien-(5.7.22t)；Isopyrocalciferol acetate；[(3S,9R,10R,13R,14R,17R)-17-[(E,2R,5R)-5,6-dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate
• CAS: 2874-25-1
• 化学式: C₃₀H₄₆O₂
• 分子量: 438.694
• InChiKey: NGEVNHYPVVOXPB-ZLQSPFBJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8
• 重原子数：
  32
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.77
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (10R)-3c-Acetoxy-10r.13c-dimethyl-17c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-(9cH.14tH)-Δ^5.7-dodecahydro-1H-cyclopenta[a]phenanthren 生成 (22E)-3β-acetoxy-5α-ergosta-6,8(14),22-triene
  参考文献：
  名称：

  HEDTMANN, UDO;HOBERT, KURT;MILKOVA, TSENKA;WELZEL, PETER, TETRAHEDRON, 44,(1988) N 7, 1941-1952

  摘要：

  DOI：
• 作为产物：
  描述：

  (3beta,9beta,22E)-麦角甾-5,7,22-三烯-3-醇 生成 (10R)-3c-Acetoxy-10r.13c-dimethyl-17c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-(9cH.14tH)-Δ^5.7-dodecahydro-1H-cyclopenta[a]phenanthren
  参考文献：
  名称：

  HAAG, THIERRY;LUU, BANG;HETRU, CHARLES, J. CHEM. SOC. PERKIN TRANS. PT I,(1988) N 8, C. 2353-2363

  摘要：

  DOI：

文献信息

• Mueller, Hoppe-Seyler's Zeitschrift fur Physiologische Chemie, 1935, vol. 233, p. 223,231
  作者：Mueller

  DOI：——

  日期：——
• The Impact of Municipal Solid Waste Management on Greenhouse Gas Emissions in the United States
  作者：Keith A. Weitz、Susan A. Thorneloe、Subba R. Nishtala、Sherry Yarkosky、Maria Zannes

  DOI：10.1080/10473289.2002.10470843

  日期：2002.9

  Technological advancements, environmental regulations, and emphasis on resource conservation and recovery have greatly reduced the environmental impacts of municipal solid waste (MSW) management, including emissions of greenhouse gases (GHGs). This study was conducted using a life-cycle methodology to track changes in GHG emissions during the past 25 years from the management of MSW in the United States. For the baseline year of 1974, MSW management consisted of limited recycling, combustion without energy recovery, and landfilling without gas collection or control. This was compared with data for 1980, 1990, and 1997, accounting for changes in MSW quantity, composition, management practices, and technology. Over time, the United States has moved toward increased recycling, composting, combustion (with energy recovery) and landfilling with gas recovery, control, and utilization. These changes were accounted for with historical data on MSW composition, quantities, management practices, and technological changes. Included in the analysis were the benefits of materials recycling and energy recovery to the extent that these displace virgin raw materials and fossil fuel electricity production, respectively. Carbon sinks associated with MSW management also were addressed. The results indicate. that the MSW management actions taken by U.S. communities have significantly reduced potential GHG emission's despite an almost 2-fold increase in waste generation. GHG emissions from MSW management were estimated to be 36 million metric tons carbon equivalents (MMTCE) in 1974 and 8 MMTCE in 1997. If MSW were being managed today as it was in 1974, GHG emissions would be similar to60 MMTCE.
• Dimroth, Chemische Berichte, 1937, vol. 70, p. 1631,1635
  作者：Dimroth

  DOI：——

  日期：——
• Effect of burning on soil organic matter content and N mineralization under shifting cultivation system of Karen people in Northern Thailand
  作者：Sota Tanaka、Tomonori Ando、Shinya Funakawa、Chainarong Sukhrun、Thammanoon Kaewkhongkha、Katsutoshi Sakurai

  DOI：10.1080/00380768.2001.10408418

  日期：2001.9

  In the traditional shifting cultivation system practiced by the Karen people in northern Thailand, the effects of burning on the content of extractable organic matter, microbial biomass, and N mineralization process of the soils were studied. Five plots (5 x 5 m(2) quadrat) with 0, 10, 20, 50, and 100 Mg ha(-1) of slashed materials were arranged and burned. Ten to 20 Mg ha(-1) of slashed biomass corresponded to the amount commonly burned by the Karen people. During the burning process, the soil temperature at the depth of 2.5 cm in the 100 Mg ha(-1) plot almost evenly increased to 300 degreesC while the temperature in the 10 to 50 Mg ha(-1) plots increased with large variations from 50 to 300 degreesC. Burning caused a conspicuous increase in the contents of organic C and (organic+ mineral)-N extracted at room temperature and a simultaneous decrease in the contents of microbial biomass C and N, especially in the soil of the 100 Mg ha(-1) plot. In the rainy season, the values of the changes induced by burning reverted to the values recorded before burning, except for the microbial biomass in the 100 Mg ha(-1) plot, which still remained lower. Based on an incubation experiment, N mineralization rate was higher in the soils taken just after burning, especially in the 100 Mg ha(-1) plot, than in the soils taken during the rainy season. However, the soil in the 100 Mg ha(-1) plot was considered to have the lowest ability to supply mineral N among the soils in the rainy season. Burning of 10 to 20 Mg ha(-1) biomass corresponding to the values recorded in Karen peoples' shifting cultivation system was more compatible with soil ecology in terms of N supply at the initial stage of crop growth and of microbial biomass recovery during the rainy season, compared to the burning of 100 Mg ha(-1) biomass corresponding to the value recorded in a natural forest. Thus, the shifting cultivation system implemented by the Karen people can be considered to be a well-balanced agricultural system.
• AGARWAL, VINITA;HUSAIN, SHAKIR;GUPTA, K. C., ACTA CHIM. HUNG., 127,(1990) N, C. 77-81
  作者：AGARWAL, VINITA、HUSAIN, SHAKIR、GUPTA, K. C.

  DOI：——

  日期：——