Design, Synthesis, and Pharmacological Characterization of a Neutral, Non-Prodrug Thrombin Inhibitor with Good Oral Pharmacokinetics
作者:Alexander Hillisch、Kersten M. Gericke、Swen Allerheiligen、Susanne Roehrig、Martina Schaefer、Adrian Tersteegen、Simone Schulz、Philip Lienau、Mark Gnoth、Vera Puetter、Roman C. Hillig、Stefan Heitmeier
DOI:10.1021/acs.jmedchem.0c01035
日期:2020.11.12
Despite extensive research on small molecule thrombininhibitors for oral application in the past decades, only a single double prodrug with very modest oral bioavailability has reached human therapy as a marketed drug. We have undertaken major efforts to identify neutral, non-prodrug inhibitors. Using a holistic analysis of all available internal data, we were able to build computational models and
Herein the first example of the iron(II)‐catalyzed trifluoromethylation of enamide using mild and simple reaction conditions is reported. The method is cost‐effective and uses the easy‐to‐handle Togni’s reagent as the electrophilic CF3 source. This transformation is totally regioselective at the C3 position of enamides and exhibits broad substrate scope, good functional group tolerance and thus demonstrates
Pd-catalysed conjugateaddition of arylboronicacids to α,β-unsaturatedcyclic ketones was studied under controlled microwave irradiation conditions. A variety of catalysts, bases and solvents was explored in order to achieve optimum yields in the shortest possible reaction time. Under optimised conditions (Pd(OAc)2/2,2′-bipyridine and KF in a mixture of toluene, water, and acetic acid and 10 min microwave
Catalytic enantioselective conjugate addition of dialkylzinc reagents to N-substituted-2,3-dehydro-4-piperidones
作者:Radovan Šebesta、Maria Gabriella Pizzuti、Arnold J. Boersma、Adriaan J. Minnaard、Ben L. Feringa
DOI:10.1039/b417727d
日期:——
The first, highlyenantioselective, copper/phosphoramidite-catalyzed conjugateaddition of dialkylzinc reagents to N-substituted 2,3-dehydro-4-piperidones is described.
One-pot terminal alkene homologation using a tandem olefin cross-metathesis/allylic carbonate reduction sequence
作者:Daniel L. Comins、Jason M. Dinsmore、Lucas R. Marks
DOI:10.1039/b709754a
日期:——
A one-carbon homologation of terminal alkenes has been developed utilizing an olefin cross-metathesis followed by a palladium-mediated allylic carbonate reduction; various substrates were used to demonstrate the scope of the reaction, with yields ranging from 65 to 86%.