对抗炎药乙醇酰胺衍生物作为潜在合成大麻素和用于研究大麻素和香草素受体的机械工具的持续兴趣促使我们开发了迄今为止未知的芬布芬乙醇酰胺的实用克级合成方法。芬布芬脱水导致分子内闭环,产生亮粉色的分子内烯醇酯晶体。这种活化但稳定的中间体与乙醇胺的反应以良好的产率和纯度得到标题化合物,而无需去除偶联剂或残留的活化基团,例如 N, N-二烷基脲和氟化酚。
Synthesis, binding studies and molecular modeling of novel cannabinoid receptor ligands
作者:Noha A. Osman、Amr H. Mahmoud、Marco Allarà、Raimund Niess、Khaled A. Abouzid、Vincenzo Di Marzo、Ashraf H. Abadi
DOI:10.1016/j.bmc.2010.10.050
日期:2010.12
affinity to CB1/CB2 cannabinoid receptors, binding studies showed that some of the newly developed compounds have measurable affinity and selectivity for the CB2 receptor. Compounds XI and XVIII showed the highest binding affinity for CB2 receptor. None of the compounds exhibited inhibitory activity towards anandamide hydrolysis, thus arguing in favor of their enzymatic stability. The structure–activity
intermediates with deconjugated butenolides and azlactones were accomplished by using a novelchiral hybrid P,S‐ligand and hydrogen bonding. By doing so, highly functionalized, optically active dihydroquinol‐2‐ones were produced with generally high reaction efficiencies and selectivities. Preliminary DFT calculations were performed to explain the high enantio‐ and diastereoselectivities.
4-Aminocyclopentane-1,3-diols as Platforms for Diversity: Synthesis of Anandamide Analogs
作者:Vida Zohrabi-Kalantari、Abbas Jarrahian、Caterina Bissantz、Donald Bergstrom、Eric Barker、Andreas Link
DOI:10.2174/1573406411309060013
日期:2013.7.1
Starting from cyclopentadiene, two racemic mixtures of 4-aminocyclopentane-1,3-diols were prepared in 8
steps and characterized. Structure determination proved the anticipated trans-orientation of the two oxygen atoms with respect
to the plane of the ring. The fragment-like new compounds are small and hydrophilic, devoid of rotatable bonds, and
offer stereochemically defined attachment points for substituents. Thus, these platforms for diversity are suitable starting
points for the construction of combinatorial libraries of lead-like 4-amidocyclopentane-1,3-diols or natural product analogs.
As a proof of concept, cyclopentanoid anandamide analogs were prepared using these molecular platforms and
evaluated as tools for the investigation of unresolved issues in the molecular biology of anandamide.
Asymmetric vinylogous Michael addition of 5-substituted-furan-2(3<i>H</i>)-ones to an α,β-unsaturated-γ-lactam
作者:Marta Romaniszyn、Lesław Sieroń、Łukasz Albrecht
DOI:10.1039/d0ob01750g
日期:——
The manuscript describes an utilization of 5-substituted-furan-2(3H)-ones as pronucleophiles in an asymmetric vinylogous Michaeladdition to an α,β-unsaturated-γ-lactam, thus leading to hybrid molecules possessing γ-lactam and butenolide structural motifs. The transformation utilizes two potentially vinylogous pronucleophiles and has been realized by simultaneous activation of both substrates by a
该手稿描述了将 5-取代的呋喃-2(3 H )-ones 作为亲核试剂在不对称插藤迈克尔加成到 α、β-不饱和-γ-内酰胺中的应用,从而产生具有 γ-内酰胺和丁烯内酯的杂化分子结构图案。该转化利用了两种潜在的乙烯基原亲核试剂,并通过衍生自金鸡纳生物碱的双功能有机催化剂同时激活两种底物来实现。反应以高度对映选择性和非对映选择性方式发生,目标产物的合成潜力已在立体选择性转化中得到证实。
Synthesis, characterization and photophysical properties of new 2(3H) furanone derivatives
作者:Mohamed H.A. Soliman、Sahar S. El-Sakka、Asmaa S. Fathy、Rasha M. Kamel
DOI:10.1016/j.molstruc.2022.134543
日期:2023.2
A new class of 5-aryl-3-((E)-3-phenylallylidene)-2(3H)-furanones (3a-f) derivatives was synthesised and thoroughly characterised using 1H NMR, FT-IR, and elemental analysis. The absorption and emission spectra of prepared compounds (3a-f) have been conducted in ten different solvents with different polarities. The emission spectra for all synthesized derivatives are the same in shape, with a large