147440-85-5

Upstream product

• 6175-45-7 2,2-diethoxyacetophenone 
• 147440-84-4 2-chloro-3,4-dimethyl-5-pivaloylaminopyridine 
• 65169-34-8 3,4-dimethyl-2-hydroxy-5-nitropyridine 
• 65169-35-9 2-chloro-3,4-dimethyl-5-nitropyridine 
• 147440-83-3 5-amino-2-chloro-3,4-dimethylpyridine 

Downstream Products

• 147440-86-6 6-chloro-5-methyl-3-phenyl-1,7-naphthyridine 
• 147440-88-8 3-phenyl-1,7-naphthyridine-5-carboxaldehyde 
• 147440-87-7 5-methyl-3-phenyl-1,7-naphthyridine 

Relevant academic research and scientific papers

4-cinnolinyl- and 4-naphthyridinyl-dihydropyridines, processes for their preparation and their use in medicaments

The invention relates to new 4-cinnolinyl- and 4-naphthyridinyl-dihydropyridines of the general formula I STR1 in which R1 to R5 have the meaning given in the description, to processes for their preparation and to their use in medica

Regioselective metalation of ortho-aminopicolines using the pivaloyl group as a directing group: Synthesis of naphthyridines

2-(1,3-Dioxan-2-yl)-3-methyl-4- and 2-chloro-3,4-dimethyl-5-pivaloylaminopyridines were prepared and converted to 1,6- and 1,7-naphthylpyridines via regioselective lithiation of the ortho-methyl group, reaction with 2,2-diethoxyacetophenone and subsequent