C–H functionalization enabled stereoselective Ugi-azide reaction to α-tetrazolyl alicyclic amines
作者:Surajit Haldar、Subhajit Saha、Sumana Mandal、Chandan K. Jana
DOI:10.1039/c8gc01544a
日期:——
novel reaction produces α-tetrazolyl N-heterocycles directly from N-heterocycles without involving pre-functionalization/pre-oxidation steps. Importantly, the stereoselective reaction involving chiral amines or chiral isocyanides allowed the expeditious syntheses of nucleoside analogs and α-tetrazolyl pyrrolidine in enantioenriched form.
Synthesis of diphenylamine macrocycles and their anti-inflammatory effects
作者:Alejandra Chávez-Riveros、Eduardo Hernández-Vázquez、Antonio Nieto-Camacho、Teresa Ramírez-Apan、Luis D. Miranda
DOI:10.1039/c8ob03121e
日期:——
A collection of fourteen diphenylamine macrocyclic derivatives containing a peptide chain with different substituents was synthesized using a protocol of two Ugi four component reactions (Ugi-4CR) and a Buchwald–Hartwig macrocyclization. Their anti-inflammatory effects were assayed with an ear edema model using 12-O-tetradecanoylphorbol-13-acetate, while the activity of myeloperoxidase was determined
A facile conversion of formamides to isonitriles under very mild conditions and microwave irradiation is described. This simple and efficient method has been applied for the synthesis of both aliphatic and aromatic isonitriles in high yields.
Substituted imidazo[1,2-a]pyridine compounds and pharmaceutical preparations containing substituted imidazo[1,2-a]pyridine compounds
申请人:Sundermann Bernd
公开号:US20070099896A1
公开(公告)日:2007-05-03
Substituted imidazo[1,2-a]pyridine compounds, a process for the production thereof, pharmaceutical preparations containing such compounds and methods of using such substituted imidazo[1,2-a]pyridine compounds to treat and/or inhibit various diseases or pathological conditions.
Expanding the structure-activity relationship of cytotoxic diphenyl macrocycles
作者:Alejandra Chávez-Riveros、Ángel Ramírez-Trinidad、Eduardo Hernández-Vázquez、Luis D. Miranda
DOI:10.1016/j.bmcl.2022.128628
日期:2022.4
Twenty-four biaryl tetrapeptide macrocycles were synthesized as an extension of our previous work. Two groups of compounds were constructed for establishing a structure–activity relationship: one having an aromatic substituent at α-position of one exo-peptide and the other group with a variation in the size of the lipophilic chain. Compound 13t had the best cytotoxicity from all the compounds tested