193617-22-0Relevant articles and documents
Substituted Ethyl 2-Acyl-3-amino-6-methylthieno[2,3-b]pyridine-4-carboxylates as Synthons for Novel Heterocycles
Coppo, Frank T.,Fawzi, Maged M.
, p. 729 - 732 (2007/10/03)
The triethylamine-catalyzed reaction of 4-substituted ethyl 2-acyl-3-amino-6-methylthieno[2,3-b]pyridine-4-carboxylates IIIa-h with 2,2,6-trimethyl-4H-1,3-dioxin-4-one IV gave 4-substituted ethyl 3-acetyl-2-hydroxy-7-methylthieno[2,3-b:4,5-b']dipyridine-9