The present invention provides a benzofuran derivative of the formula [1]:
wherein x is a group of the formula: —N═ or —CH═; Y is an optionally substituted amino group, an optionally substituted cycloalkyl group or an optionally substituted saturated heterocyclic group; A is a single bond, a carbon chain optionally having a double bond within or at the end(s) of the chain, or an oxygen atom; R
1
is a hydrogen atom or a halogen atom; Ring B is an optionally substituted benzene ring; and R
3
is a hydrogen atom, or a pharmaceutically acceptable salt thereof, which is useful as a medicament, especially as an activated blood coagulation factor X inhibitor.
A microwave-assisted multicomponent protocol for the synthesis of benzofuran-2-carboxamides
作者:Paolo Vincetti、Anna Brianza、Nicolò Scalacci、Gabriele Costantino、Daniele Castagnolo、Marco Radi
DOI:10.1016/j.tetlet.2016.02.068
日期:2016.3
A fast, versatile and practical microwave-assisted multicomponent protocol for the synthesis of substituted benzofuran-2-carboxamides has been developed. The present method proved to be effective on a series of commercially available amines, 2′-hydroxyacetophenones, aldehydes, and benzonitriles and could be exploited in drug-discovery campaigns for the rapid identification of biologically active hit