A Concise Synthesis of (−)-Aplyviolene Facilitated by a Strategic Tertiary Radical Conjugate Addition
作者:Martin J. Schnermann、Larry E. Overman
DOI:10.1002/anie.201204977
日期:2012.9.17
A second‐generation synthesis of the rearranged spongian diterpene aplyviolene is reported. The key step is the addition of a trialkyl tertiaryradical generated by photoredox‐mediated fragmentation of a N‐(acyloxy)phthalimide to an α‐chloropentenone (see scheme). This process fashioned a quaternary stereocenter while combining two units of significant complexity.
Synthesis and Properties of N,N′-Disubstituted Ureas and Their Isosteric Analogs Containing Polycyclic Fragments: XII. N-(1,3,3-Trimethylbicyclo[2.2.1]heptan-2-yl)-N′-R-ureas and -thioureas
作者:Ya. P. Kuznetsov、A. A. Vernigora、E. K. Degtyarenko、M. H. Abbas Saeef、D. A. Pitushkin、V. V. Burmistrov、G. M. Butov
DOI:10.1134/s1070428021120010
日期:2021.12
Abstract N,N′-Disubstituted ureas and thioureas containing a lipophilic opticallyactive bicyclic fragment of natural origin were synthesized by reaction of (R)- and (S)-1,3,3-trimethylbicyclo[2.2.1]heptan-2-amine (prepared from the natural terpenoid fenchone) with aromatic isocyanates and isothiocyanates in up to 88 and 87% yield, respectively, with the goal of assessing the enantiomeric specificity
摘要 通过 ( R )- 和 ( S )-1,3,3-三甲基双环[2.2.1]庚烷-2-胺反应合成了N , N '-二取代脲和硫脲,它们含有天然来源的亲脂性光学活性双环片段(由天然萜类小茴香酮制备)与芳族异氰酸酯和异硫氰酸酯的产率分别高达 88% 和 87%,目的是评估人可溶性环氧化物水解酶 (hsEH) 的对映体特异性。发现合成的化合物有望作为 RNA 病毒复制和 hsEH 的抑制剂。
Hueckel; Sachs, Justus Liebigs Annalen der Chemie, 1932, vol. 498, p. 166,182
作者:Hueckel、Sachs
DOI:——
日期:——
Kreiser, Wolfgang; Below, Peter, Liebigs Annalen der Chemie, 1985, # 1, p. 203 - 209
作者:Kreiser, Wolfgang、Below, Peter
DOI:——
日期:——
Delepine, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1924, vol. 178, p. 1723