1042718-88-6Relevant articles and documents
Heterocycles [h]fused onto 4-oxoquinoline-3-carboxylic acid, part IV. Convenient synthesis of substituted hexahydro [1,4]thiazepino[2,3-h]quinoline-9- carboxylic acid and its tetrahydroquino[7,8-b]benzothiazepine homolog
Al-Huniti, Mohammed H.,El-Abadelah, Mustafa M.,Zahra, Jalal A.,Sabri, Salim S.,Ingendoh, Arnd
, p. 1558 - 1568 (2007)
Substituted [1,4]thiazepino[2,3-h]quinolinecarboxylic acid 3 is prepared by PPA-catalyzed thermal lactamization of the respective 8-amino-7-[(2- carboxyethyl)thio]-1,4-dihydroquinoline-3-carboxylic acid 9. The latter synthon is obtained by reduction of th