在这项研究中,我们描述了一组含有刚性芳香族连接结构的双-3-氯哌啶(B-CePs)的合成和生物学评价。对合成策略的修改还使得能够合成在芳香族支架上带有三个反应性间氯哌啶部分的试点三-3-氯哌啶(Tri-CeP) 。B−CePs 的结构-反应性关系分析表明,反应单元的排列会影响 DNA 烷基化活性,同时还揭示了芳香系统的电子密度与生物相关亲核试剂的反应性之间的相关性,无论是在分离的 DNA 上还是在癌细胞。有趣的是,所有芳香族 3-氯哌啶对胰腺癌细胞的 2D 和 3D 培养物均表现出显着的细胞毒性和趋向性。因此,新型芳香族3-氯哌啶似乎是进一步开发针对胰腺癌的芥子类抗癌药物的有希望的竞争者。
Catalysis of Cope-type rearrangements of bis-homoallylic hydroxylamines is demonstrated using chiral thiourea derivatives. This formal intramolecular hydroamination reaction provides access to highly enantioenriched alpha-substituted pyrrolidine products and represents a complementary approach to metal-catalyzed methods.
A New Method for the Generation and Cyclization of Iminyl Radicals via the Hudson Reaction
作者:Xichen Lin、Didier Stien、Steven M. Weinreb
DOI:10.1021/ol990720e
日期:1999.8.1
[formula: see text] A mild new synthetic procedure has been developed for in situ generation and cyclization of iminylradicals onto pendant alkenes, followed by functionalization of the resulting carbon radical by one of a variety of trapping reagents. The key process in the method involves production of the iminylradical via treatment of an aldoxime or ketoxime with readily available 2,6-dimethylbenzenesulfinyl
Aromatic Linkers Unleash the Antiproliferative Potential of 3‐Chloropiperidines Against Pancreatic Cancer Cells
作者:Tim Helbing、Caterina Carraro、Alexander Francke、Alice Sosic、Michele De Franco、Valentina Gandin、Richard Göttlich、Barbara Gatto
DOI:10.1002/cmdc.202000457
日期:2020.11.4
In this study, we describe the synthesis and biological evaluation of a set of bis‐3‐chloropiperidines (B−CePs) containing rigid aromatic linker structures. A modification of the synthetic strategy also enabled the synthesis of a pilot tris‐3‐chloropiperidine (Tri‐CeP) bearing three reactive meta‐chloropiperidine moieties on the aromatic scaffold. A structure–reactivity relationship analysis of B−CePs
在这项研究中,我们描述了一组含有刚性芳香族连接结构的双-3-氯哌啶(B-CePs)的合成和生物学评价。对合成策略的修改还使得能够合成在芳香族支架上带有三个反应性间氯哌啶部分的试点三-3-氯哌啶(Tri-CeP) 。B−CePs 的结构-反应性关系分析表明,反应单元的排列会影响 DNA 烷基化活性,同时还揭示了芳香系统的电子密度与生物相关亲核试剂的反应性之间的相关性,无论是在分离的 DNA 上还是在癌细胞。有趣的是,所有芳香族 3-氯哌啶对胰腺癌细胞的 2D 和 3D 培养物均表现出显着的细胞毒性和趋向性。因此,新型芳香族3-氯哌啶似乎是进一步开发针对胰腺癌的芥子类抗癌药物的有希望的竞争者。
A Novel 18F-Labeling Method for the Synthesis of [18F]-Piperidine-Containing Ligands as Potential PET Radiotracers for σ Receptors
作者:Zibo Li、Qiu Wang、Gerardo Ortiz、Kantapat Chansaenpak、Mengzhe Wang、Xiaofen Ma、Hui Wang
DOI:10.1055/s-0036-1591734
日期:2018.3
We report a novel 18 F-labeling method for the preparation of 18 F-containing piperidine derivatives. This method is demonstrated on the design and synthesis of 18 F-labeled potentialPET radiotracers of σ receptors for initial biological evaluations. 1 Introduction 2 Design and Synthesis of Novel [ 19 F]-3 and [ 19 F]-3′ 3 Radiosynthesis of Novel [ 18 F]-3 and [ 18 F]-3′ 4 In vivo Uptake and Pharmacokinetics
我们报告了一种新的 18 F 标记方法,用于制备含 18 F 的哌啶衍生物。该方法在 18 F 标记的 σ 受体的潜在 PET 放射性示踪剂的设计和合成上得到证明,用于初始生物学评估。1 引言 2 新型[ 19 F]-3 和[ 19 F]-3' 3 新型[ 18 F]-3 和[ 18 F]-3' 4 的放射合成[ 18 F] 的体内吸收和药代动力学]-3 和 [ 18 F]-3' 5 结论
Stereoselective electrophile-induced mono- and bis-cyclisation–fragmentation reactions of alkenyl oxime O-allyl and O-benzyl ethers. Synthesis of dihydropinidine
作者:H Ali Dondas、Ronald Grigg、Jasothara Markandu、Trevor Perrior、Tekka Suzuki、Sylvie Thibault、W Anthony Thomas、Mark Thornton-Pett
DOI:10.1016/s0040-4020(01)01118-8
日期:2002.1
Phenylseleny bromide-induced cyclisation of γ- and δ-unsaturated aldoxime and ketoxime O-allyl and O-benzyl ethers is followed by a slow fragmentation of the resultant oxyiminium ions furnishing cyclic iminium salts which are readily reduced to pyrrolidines, piperidines or tetrahydroisoquinolines by sodium borohydride; dialkenyl oximes yield indolizidines and quinolizidines by an analogous sequence