作者: Manuel M. Baizer , Michael Dub , Sidney Gister , Nathan G. Steinberg
关键词: Nicotinic Acids 、 Nuclear chemistry 、 Niacin 、 Chemistry 、 Isonicotinic acid 、 Isoniazid 、 Citric acid 、 Biochemistry 、 Citrazinic acid 、 Ethyl isonicotinate
摘要: A process was developed for the preparation of isoniazid from citric acid via citrazinic acid, 2,6-dichloroisonicotinic isonicotinic and ethyl isonicotinate. Yields procedures in all steps were improved.