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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 19, Number 6
BKCSDE 19(6)
June 20, 1998 

Synthesis of Pyrazoloquinolines as Gastric H+/K+-ATPase Inhibitors
G. D. Kalayanov, S. K. Kang, H. G. Cheon, S. G. Lee, E. K. Yum, S. S. Kim, J. -K. Choi
A series of 1-aryl-lH-pyrazolo[4,3-c]quinolines and 2-aryl-2H-pyrazolo[4,3-c]quinolines are prepared by reacting 3-acyl-4-chloroquinolines in ethanol or 3-acyl-4(lH)-quinolone in acetic acid with appropriate hydrazines as possible anti-ulcer agents. A regiospecific synthesis of 1-aryl-lH-pyrazolo[4,3-c]quinolines is also achieved. The central pyridine ring could be easily reduced by catalytic hydrogenation.
667 - 671
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