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24-methyl-24-dehydrocholesteryl acetate | 33444-85-8

中文名称
——
中文别名
——
英文名称
24-methyl-24-dehydrocholesteryl acetate
英文别名
24-methylcholesta-5,24-dien-3β-yl acetate;ergosta-5,24-dienyl 3β-acetate;Ergosta-5,24(25)-dien-3β-yl-acetat;24-Methylen-cholestadien-(5,24)-ol-(3β)-acetat;Ergosta-5,24-dien-3beta-ol, acetate;[(3S,8S,9S,10R,13R,14S,17R)-17-[(2R)-5,6-dimethylhept-5-en-2-yl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate
24-methyl-24-dehydrocholesteryl acetate化学式
CAS
33444-85-8
化学式
C30H48O2
mdl
——
分子量
440.71
InChiKey
LUSJRANTKUMKJQ-OJMNJZCNSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    140-143 °C
  • 沸点:
    509.1±29.0 °C(Predicted)
  • 密度:
    1.00±0.1 g/cm3(Predicted)
  • 保留指数:
    3323

计算性质

  • 辛醇/水分配系数(LogP):
    9.3
  • 重原子数:
    32
  • 可旋转键数:
    6
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.83
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Preparative Method for the Quantitative Separation of Methylenic Sterols from Unsaturated Sterol Mixtures by Chemoselective Hydroxymercuration-Deoxymercuration
    作者:Laïla El Kihel、Georges Charles
    DOI:10.1055/s-2006-942495
    日期:2006.8
    intermediates were easily purified by flash chromatography on silica gel column and the reactive alkenes were regenerated by deoxymercuration in a biphasic system (ethyl acetate/I M HCl, 2:1 ratio). These conditions leave the ring double bonds of steroids intact. No isomerization of methylene double bonds was observed.
    报道了一种前所未有的选择性和定量方法,允许从不饱和甾醇混合物中分离亚甲基甾醇。我们已将改良布朗条件下的羟基汞化反应扩展到对三十种不饱和甾醇作为各种甾醇混合物的系统研究。在甾醇的亚甲基侧链上实现了高产的定向化学选择性羟基汞化。得到的有机汞中间体很容易通过硅胶柱上的快速色谱法纯化,反应性烯烃通过在双相系统(乙酸乙酯/1M HCl,2:1比例)中脱氧汞再生。这些条件使类固醇的环双键完好无损。没有观察到亚甲基双键的异构化。
  • Investigations on the Δ23-, Δ24(28)- and Δ25-Sterols of zea mays
    作者:Neil L.A. Misso、L. John Goad
    DOI:10.1016/0031-9422(84)83081-2
    日期:1984.1
    25 -compound, cyclolaudenol, were recognized. These various Δ 23 - and Δ 25 -sterols may have some importance in alternative biosynthetic routes to the major sterols, particularly the 24β-methylcholest-5-en-3β-ol component of the C 28 -sterols. Radioactivity from both [2- 14 C]MVA and [methyl- 14 C]methionine was incorporated by Z. mays shoots into the sterol mixture. Although 24-methylene and 24-ethylidene
    摘要 用薄层色谱、高效液相色谱、气相色谱/质谱联用技术和 1 H 核磁共振技术分离并表征了玉米笋中的甾醇。总共鉴定了 22 种 4-去甲基甾醇,它们包括痕量的 Δ 23 -、Δ 24 - 和Δ 25 - 甾醇、24-甲基胆甾醇-5、E -23-dien-3β-ol、24-甲基胆甾醇- 5, Z -23-dien-3β-ol, 24-methylcholesta-5,25-dien-3β-ol, 24-ethylcholesta-5,25-dien-3β-ol 和 24-ethylcholesta-5,24-dien- 3β-醇。在 4,4-二甲基甾醇级分中,环木蒿醇和 24-亚甲基环木桐醇是主要的甾醇成分,但也发现了少量的 Δ 23 - 化合物环沙多和 Δ 25 - 化合物环月桂醇。这些不同的 Δ 23 - 和 Δ 25 - 甾醇在主要甾醇的替代生物合成途径中可能具有一定的重要性,特别是 C
  • Untersuchungen uber Steroide. XXXI. Umlagerung einer Doppelbindung an C<SUB>24 (28)</SUB> der Sterin-Seitenkette bei Einwirkung von Jod.
    作者:Kiyoshi Sakai
    DOI:10.1248/cpb.11.752
    日期:——
    Es wird eine Umlagerungsreaktion der Doppelbindung an C24 (28) der Sterinseitenkette beschrieben. Die Doppelbindung an C24 (28) des Fucosterylacetates bzw. des 24-Methylencholesterylacetates laβt sich durch Einwirkung von Jod in die 24 (25)-Stellung umlagern.
    描述了固醇侧链 C24(28)位双键的重排反应。在碘的作用下,醋酸褐藻酯或醋酸 24-亚甲基胆固醇酯的 C24(28)位双键可重新排列到 24(25)位。
  • Ergosta-5,23-dien-3β-ol and ergosta-7,23-dien-3β-ol, two new sterols from Zea mays etiolated coleoptiles
    作者:Francoise Scheid、Pierre Benveniste
    DOI:10.1016/0031-9422(79)80136-3
    日期:1979.1
    Abstract Ergosta-5,23-dien-3β-ol and ergosta-7,23-dien-3β-ol were identified for the first time in maize etiolated coleoptiles. They represent more than 11 % of the total 4-desmethyl sterol fraction. It is suggested that they could play some role in the biosynthesis of 24-methyl sterols of this material.
    摘要 首次在玉米黄化胚芽鞘中鉴定到 Ergosta-5,23-dien-3β-ol 和 ergosta-7,23-dien-3β-ol。它们占 4-去甲基甾醇总量的 11% 以上。表明它们可以在该材料的 24-甲基甾醇的生物合成中发挥一定作用。
  • 24-Methyl-23-dehydrocholesterol: A new sterol intermediate in C-24 demethylation from the nematodes Panagrellus redivivus and Caenorhabditis elegans?
    作者:Thomas A. Salt、Ruben Lozano、William R. Lusby、David J. Chitwood、Malcolm J. Thompson
    DOI:10.1016/0039-128x(86)90031-0
    日期:1986.11
    Panagrellus redivivus produced 24-methyl-23-dehydrocholesterol as 4.0% of the 4-desmethylsterols when propagated in a medium containing campesterol as the dietary sterol. The re-examination of previous data revealed that Caenorhabditis elegans produced 1.8% 24-methyl-23-dehydrocholesterol when propagated in medium containing campesterol. 24-Methyl-23-dehydrocholesterol was not detected when the nematodes were propagated in medium containing 22-dihydrobrassicasterol or 24-methylenecholesterol. This may be a result of the greater efficiency of dealkylation of the latter two sterols. This is the first report of the natural occurrence of this sterol in a non-photosynthetic organism, and the first report in organisms that dealkylate 24-alkylsterols.
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