Novel Syntheses of Variably Substituted Pyrrolo[2,3-d]thiazoles

[摘要]：Pyrrolo[2,3-d]thiazoles are conveniently derived from the corresponding o-aminoalkynylthiazoles via microwave assisted 5-endo-dig cyclization. Methylene-bridged substituents in the 6-position are directly obtained from 5-exo-Heck cyclization based on the same iodoaminothiazole precursor. Further structural variety is accessible via Suzuki reaction of 2-chloroaminothiazoles prior to cyclization or post-cyclization modifications.

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