353290-51-4Relevant articles and documents
A convenient selective N-alkylation of 4-oxo-1,4-dihydro-2-quinoline carboxylic acid
Edmont,Chenault
, p. 833 - 835 (2007/10/03)
The selective N-alkylation of 4-oxo-1,4-dihydro-2-quinoline carboxylic acid has been achieved from 1,2-dihydro[1,4]oxazino [4,3-a]quinoline-4,6-dione by the 2-morpholinone ring opening. In the same time, we have developed a new methodology to obtain the 1,2-dihydro[1,4]oxazino[4,3-a]quinoline-4,6-dione that involves an intramolecular cyclization of the 2-chloroethyl 6-fluoro-4-oxo-1,4-dihydro-2-quinoline carboxylate.