Investigation of naphthyridines. 12. Synthesis of substituted 5-oxo-5,6,7,8-tetrahydro-1,6-naphthyridines by cyclization of 2-styrylnicotinic acid amides
Investigation of naphthyridines. 12. Synthesis of substituted 5-oxo-5,6,7,8-tetrahydro-1,6-naphthyridines by cyclization of 2-styrylnicotinic acid amides