Sulfur, selenium and tellurium containing amines act as effective carbonic anhydrase activators
作者:Damiano Tanini、Antonella Capperucci、Claudiu T. Supuran、Andrea Angeli
DOI:10.1016/j.bioorg.2019.03.062
日期:2019.6
A new series of β-aminochalcogenides were designed and synthesized to identify new carbonic anhydrase activator (CAA) agents as novel tools for the management of several neurodegenerative and metabolic disorders which represent a clinical challenge without effective therapies available. Some β-aminoselenides and β-aminotellurides showed effective CA activating effects and a potent antioxidant activity
Metal-free ringopening reactions of activated and unactivated aziridines with different silyl chalcogenides are described. Judicious tuning of the reaction conditions enables the synthesis of chiral enantioenriched N-Ts and N-Boc 1,2-mercaptoamines in good yields from the corresponding aziridines and bis(trimethylsilyl)sulfide. N-Protected and N-H unactivated aziridines are efficiently converted into
Ring opening of unprotected aziridines by zinc selenolates in a biphasic system
作者:Antonio L. Braga、Ricardo S. Schwab、Eduardo E. Alberto、Syed M. Salman、Josimar Vargas、Juliano B. Azeredo
DOI:10.1016/j.tetlet.2009.02.156
日期:2009.5
A set of chiral β-seleno amines were prepared by the ring-opening reaction of unprotected aziridines. Under acid conditions diaryl or dialkyl diselenides were reduced by zinc and treated with unprotected aziridines to produce the desired products in good yields. Chiral β-telluro amine was also obtained using this method.
Decarboxylative ring-opening of 2-oxazolidinones: a facile and modular synthesis of β-chalcogen amines
作者:Fábio Z. Galetto、Cleiton da Silva、Ricardo I. M. Beche、Renata A. Balaguez、Marcelo S. Franco、Francisco F. de Assis、Tiago E. A. Frizon、Xiao Su
DOI:10.1039/d2ra06070a
日期:——
We report herein the synthesis of primary and secondary β-chalcogen amines through the regioselective ring-opening reaction of non-activated 2-oxazolidinones promoted by in situ generated chalcogenolate anions. The developed one-step protocol enabled the preparation of β-selenoamines, β-telluroamines and β-thioamines with appreciable structural diversity and in yields of up to 95%.