Saccharin Aza Bioisosteres—Synthesis and Preclinical Property Comparisons
作者:Yantao Chen、Carl-Johan Aurell、Anna Pettersen、Richard J. Lewis、Martin A. Hayes、Matti Lepistö、Anna C. Jonson、Hanna Leek、Linda Thunberg
DOI:10.1021/acsmedchemlett.7b00137
日期:2017.6.8
Saccharin is a well-known scaffold in drug discovery. Herein, we report the synthesis and preclinical property comparisons of three bioisosteres of saccharin: aza-pseudosaccharins (cluster B), and two new types of aza-saccharins (clusters C and D). We demonstrate a convenient protocol to selectively synthesize products in cluster C or D when primary amines are used. Preclinical characterization of
oxidative C–H/N–H cross-coupling amination of cyclic sulfamidate imines under undivided electrolytic conditions via an atom- and step-economic method. In this transformation, a wide variety of cyclic or acyclic dialkyl amines, amino acid derivatives, and more challenging primary anilines acted as suitable substrates with good reaction outcomes. The synthetic advantage of this electrochemical method