A simple and efficient method is described for the synthesis of thio-, dithio- and selenothiocarbamate-linked peptidomimetics. The nucleophilic addition of enantiopure N I±-protected amino alkyl thiols to isocyanates, isothiocyanates or isoselenocyanates obtained from amino acid esters proceeds smoothly in the presence of catalytic amount of DMAP. The protocol was further extended for the synthesis
General Synthesis of <i>N</i>-CF<sub>3</sub> Heteroaryl Amides via Successive Fluorination and Acylation of Sterically Hindered Isothiocyanates
作者:Min Tao、Jiasheng Qian、Zuanguang Chen、Lin-Kun An、David M. Wilson、Jianbo Liu
DOI:10.1021/acs.joc.3c01740
日期:2023.11.3
We report the one-pot synthesis of N-CF3 heteroaryl amides (NTFMHA) from heteroaryl carboxylic acids and sterically hindered isothiocyanates, including various amino acid analogues, in the presence of AgF. The key to this reaction is the utilization of free heteroaryl acyl chlorides, rather than their corresponding hydrochloride salts. This method represents a complementary method of our previous work