K. A. Eliazyan, R. Hakobyan, V. A. Pivazyan
2013
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Abstract
Abstract Readily available 2-(toluene-4-sulfonylamino)ethylamine is a convenient starting material for a two-step synthesis of 1-[2-(toluene-4-sulfonamido)ethyl]thiourea (2). Heterocyclization of the thiourea moiety in 2 furnished a thiazole derivative 3 which was further functionalized into substituted thiazoles 4–6. A series of 2-(thiazol-5-yl)-[1,3,4]oxadiazoles 8, 10 and 2-(thiazol-5-yl)-[1,3,4]thiadiazoles 9, 11 were obtained.