Synthesis, radio-synthesis and in vitro evaluation of terminally fluorinated derivatives of HU-210 and HU-211 as novel candidate PET tracers
作者:Chiara Zanato、Alessia Pelagalli、Katie F. M. Marwick、Monica Piras、Sergio Dall'Angelo、Andrea Spinaci、Roger G. Pertwee、David J. A. Wyllie、Giles E. Hardingham、Matteo Zanda
DOI:10.1039/c6ob02796b
日期:——
the synthesis of terminally fluorinated HU-210 and HU-211 analogues (HU-210F and HU-211F, respectively) and their biological evaluation as ligands of cannabinoid receptors (CB1 and CB2) and N-methyl D-aspartate receptor (NMDAR). [18F]-labelled HU-210F was radiosynthesised from the bromo-substituted precursor. In vitro assays showed that both HU-210F and HU-211F retain the potent pharmacological profile
Enantioselective zinc-mediated conjugate alkynylation of saccharin-derived 1-<i>aza</i>-butadienes
作者:Gonzalo Blay、Alvaro Castilla、David Sanz、Amparo Sanz-Marco、Carlos Vila、M. Carmen Muñoz、José R. Pedro
DOI:10.1039/d0cc04221h
日期:——
Diethylzinc and a bis(hydroxyl)malonamide ligand allow the first conjugate alkynylation of α,β-unsaturated imines. Excellent enatioselectivities are obtained with aliphatic alkynes.
De Novo Asymmetric Synthesis of Milbemycin β<sub>3</sub> via an Iterative Asymmetric Hydration Approach
作者:Miaosheng Li、George A. O'Doherty
DOI:10.1021/ol061439k
日期:2006.8.1
achieved in 22 steps and 2.8% overall yield from an achiral dienoate. The spiroketal ring system was installed by three sequential asymmetric hydrations followed by sprioketalization. Both the absolute and relative stereochemistry of milbemycin beta3 was introduced by two Sharpless asymmetric dihydroxylations, two pi-allylpalladium-catalyzed reductions, and an iridium-catalyzed hydrogen migration/Claisen