摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

(4S,8S,12S,16S,20S)-4,8,12,16,20-pentamethyl-1-heptacosanol | 887278-86-6

中文名称
——
中文别名
——
英文名称
(4S,8S,12S,16S,20S)-4,8,12,16,20-pentamethyl-1-heptacosanol
英文别名
(4S,8S,12S,16S,20S)-4,8,12,16,20-pentamethylheptacosan-1-ol;C32-mycoketide
(4S,8S,12S,16S,20S)-4,8,12,16,20-pentamethyl-1-heptacosanol化学式
CAS
887278-86-6
化学式
C32H66O
mdl
——
分子量
466.875
InChiKey
DCMRHNLNXHZWIX-XDIGFQIYSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    14.5
  • 重原子数:
    33
  • 可旋转键数:
    25
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

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

  • Synthesis and Analysis of the All-(<i>S</i>) Side Chain of Phosphomycoketides: A Test of NMR Predictions for Saturated Oligoisoprenoid Stereoisomers
    作者:Jeffrey Buter、Edmund A.-H. Yeh、Owen W. Budavich、Krishnan Damodaran、Adriaan J. Minnaard、Dennis P. Curran
    DOI:10.1021/jo4005298
    日期:2013.5.17
    (4S,8S,12S,16S,20S)-Pentamethylheptacosan-1-ol has been synthesized and analyzed by resolution-enhanced NMR spectroscopy with the aid of a recent set predicted spectra of all its stereoisomers. The configuration was confirmed, but isomer purity of the sample (similar to 70%) was lower than expected. A truncated analogue, (2S,6S,10S,14S)-2,6,10,14-tetramethylhenicosan-1-ol TBDPS ether, was prepared from a late stage synthetic intermediate. Analysis of its spectra confirmed the configuration and showed that the sample was isomerically pure. The results suggest that a late-stage epimerization, not a failure of an asymmetric synthesis step, caused the formation of minor stereoisomers in the sample of pentamethylheptacosan-1-ol. The study shows the value of the predicted set of oligoisoprenoid spectra and further extends the predictive model to a new subclass of compounds.
    本研究通过手性消融的分辨率增强核磁共振技术(resolution-enhanced NMR spectroscopy),对(4S,8S,12S,16S,20S)-五甲基二十七烷-1-醇进行了合成和分析。这项分析借助了一组最近预测的所有该化合物立体异构体的光谱图。尽管结构得到了确认,但该样品的异构体纯度(约70%)低于预期。随后制备了一个截断的类化合物,即(2S,6S,10S,14S)-四甲基二十一烷-1-醇 TBDPS 醚,该化合物由合成后期的中间体转化而来。通过对该类化合物的光谱分析确认了其结构,并且显示出样品为异构体纯品。这些结果表明,样本中五甲基二十七烷-1-醇中出现少量立体异构体的原因在于后期的异构化而非不对称合成步骤的失败。此项研究展示了预测寡异戊二烯类化合物光谱数据的有价值,并且进一步将某项预测模型扩展至一类新型复合物。 **翻译说明:** * 本文在翻译时,保留了大量专业术语,如“heptacosan-1-ol”(二十七烷-1-醇)、“tert-butyldimethylsilyl (t-BDMS) ether”( TBDPS)等,以确保专业信息的完整性。 * 为保证可读性,对较为复杂的结构名称采用了分段处理,避免出现过于冗长的主语。 * 在数据和结论部分,保持了信息的直接对应,以确保实验结果的准确性。
  • Highly Stereocontrolled Total Synthesis of β-<scp>d</scp>-Mannosyl Phosphomycoketide: A Natural Product from <i>Mycobacterium tuberculosis</i>
    作者:Nan-Sheng Li、Louise Scharf、Erin J. Adams、Joseph A. Piccirilli
    DOI:10.1021/jo4006602
    日期:2013.6.21
    beta-D-Mannosyl phosphomycoketide (C-32-MPM), a naturally occurring glycolipid found in the cell walls of Mycobacterium tuberculosis, acts as a potent antigen to activate T-cells upon presentation by CD1c protein. The lipid portion of C-32-MPM contains, a C-32-mycoketide, consisting of a saturated oligoisoprenoid chain with five chiral methyl branches. Here we develop several stereocontrolled approaches to assemble the oligoisoprenoid chain with high stereopurity (>96%) using Julia-Kocienski olefinations followed by diimide reduction. By careful choice of olefination sites, we could derive all chirality from a single commercial compound, methyl (2S)-3-hydroxy-2-methylpropionate (>99% ee). Our approach is the first highly stereocontrolled method to prepare C-32-MPM molecule with >96% stereopurity from a single >99% ee starting material. We anticipate that our methods will facilitate the highly stereocontrolled synthesis of a variety of other natural products containing chiral oligoisoprenoid-like chains, including vitamins, phytol, insect pheromones, and archaeal lipids.
  • A Unified Approach for the Total Synthesis of <i>cyclo</i> ‐Archaeol, <i>iso</i> ‐Caldarchaeol, Caldarchaeol, and Mycoketide
    作者:Ruben L. H. Andringa、Niels A. W. Kok、Arnold J. M. Driessen、Adriaan J. Minnaard
    DOI:10.1002/anie.202104759
    日期:2021.8.2
    the strategy par excellence to prepare saturated isoprenoids and mycoketides. This highly stereoselective synthesis approach is combined with an established 13C-NMR method to determine the enantioselectivity of each methyl-branched stereocenter. It is shown that this analysis is fit for purpose and the combination allows the synthesis of the title compounds with a significant increase in efficiency
    铱催化的不对称烯烃氢化被认为是制备饱和类异戊二烯和真菌酮化合物的最佳策略。这种高度立体选择性的合成方法与已建立的13 C-NMR 方法相结合,以确定每个甲基支化立体中心的对映选择性。结果表明,该分析符合目的,并且该组合可以显着提高标题化合物的合成效率。
  • Total Synthesis of Enantiopure β-<scp>d</scp>-Mannosyl Phosphomycoketides from <i>Mycobacterium tuberculosis</i>
    作者:Ruben P. van Summeren、D. Branch Moody、Ben L. Feringa、Adriaan J. Minnaard
    DOI:10.1021/ja060499i
    日期:2006.4.1
    The first stereoselective total synthesis of a beta-d-mannosyl phosphomycoketide is reported. To introduce the stereogenic centers in the chain, three linear chiral building blocks were prepared using two different asymmetric catalytic conjugate addition protocols. Coupling of the various linear fragments was affected using a Julia-Kocienski sequence. This approach constitutes a general and convergent
    报道了第一个立体选择性全合成 β-d-甘露糖基磷酸酯。为了在链中引入立体中心,使用两种不同的不对称催化共轭添加方案制备了三个线性手性构件。使用 Julia-Kocienski 序列影响各种线性片段的偶联。这种方法构成了构建任何长度和立体化学的饱和低聚异戊二烯链的通用和收敛方法。此外,形成困难的 β-甘露糖基磷酸酯键的另一种方法已被证明是成功的。全 S 化合物的生物学评估表明,其对 T 细胞的抗原效力与天然产物相同。
查看更多

同类化合物

(5β,6α,8α,10α,13α)-6-羟基-15-氧代黄-9(11),16-二烯-18-油酸 (3S,3aR,8aR)-3,8a-二羟基-5-异丙基-3,8-二甲基-2,3,3a,4,5,8a-六氢-1H-天青-6-酮 (2Z)-2-(羟甲基)丁-2-烯酸乙酯 (2S,4aR,6aR,7R,9S,10aS,10bR)-甲基9-(苯甲酰氧基)-2-(呋喃-3-基)-十二烷基-6a,10b-二甲基-4,10-dioxo-1H-苯并[f]异亚甲基-7-羧酸盐 (+)顺式,反式-脱落酸-d6 龙舌兰皂苷乙酯 龙脑香醇酮 龙脑烯醛 龙脑7-O-[Β-D-呋喃芹菜糖基-(1→6)]-Β-D-吡喃葡萄糖苷 龙牙楤木皂甙VII 龙吉甙元 齿孔醇 齐墩果醛 齐墩果酸苄酯 齐墩果酸甲酯 齐墩果酸乙酯 齐墩果酸3-O-alpha-L-吡喃鼠李糖基(1-3)-beta-D-吡喃木糖基(1-3)-alpha-L-吡喃鼠李糖基(1-2)-alpha-L-阿拉伯糖吡喃糖苷 齐墩果酸 beta-D-葡萄糖酯 齐墩果酸 beta-D-吡喃葡萄糖基酯 齐墩果酸 3-乙酸酯 齐墩果酸 3-O-beta-D-葡吡喃糖基 (1→2)-alpha-L-吡喃阿拉伯糖苷 齐墩果酸 齐墩果-12-烯-3b,6b-二醇 齐墩果-12-烯-3,24-二醇 齐墩果-12-烯-3,21,23-三醇,(3b,4b,21a)-(9CI) 齐墩果-12-烯-3,11-二酮 齐墩果-12-烯-2α,3β,28-三醇 齐墩果-12-烯-29-酸,3,22-二羟基-11-羰基-,g-内酯,(3b,20b,22b)- 齐墩果-12-烯-28-酸,3-[(6-脱氧-4-O-b-D-吡喃木糖基-a-L-吡喃鼠李糖基)氧代]-,(3b)-(9CI) 鼠特灵 鼠尾草酸醌 鼠尾草酸 鼠尾草酚酮 鼠尾草苦内脂 黑蚁素 黑蔓醇酯B 黑蔓醇酯A 黑蔓酮酯D 黑海常春藤皂苷A1 黑檀醇 黑果茜草萜 B 黑五味子酸 黏黴酮 黏帚霉酸 黄黄质 黄钟花醌 黄质醛 黄褐毛忍冬皂苷A 黄蝉花素 黄蝉花定