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One-pot parallel synthesis of 1,3,5-trisubstituted 1,2,4-triazoles

Mol. Divers. 2021

DOI: 10.1007/s11030-021-10218-2

Radchenko D.; Naumchyk V.; Dziuba I.; Kyrylchuk A.; Gubina K.; Moroz Y.; Grygorenko O.

An implementation of the three-component one-pot approach to unsymmetrical 1,3,5-trisubstituted-1,2,4-triazoles into combinatorial chemistry is described. The procedure is based on the coupling of amidines with carboxylic acids and subsequent cyclization with hydrazines. After the preliminary assessment of the reagent scope, the method had 81% success rate in parallel synthesis. It was shown that over a billion-sized chemical space of readily accessible (“REAL”) compounds may be generated based on the proposed methodology. Analysis of physicochemical parameters shows that the library contains significant fractions of both drug-like and “beyond-rule-of-five” members. More than 10 million of accessible compounds meet the strictest lead-likeness criteria. Additionally, 195 Mln of sp3-enriched compounds can be produced. This makes the proposed approach a valuable tool in medicinal chemistry.

One-pot parallel synthesis of 1,3,5-trisubstituted 1,2,4-triazoles

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