Imidazoquinazoline derivatives

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United States of America Patent

PATENT NO 5698560
SERIAL NO

08727598

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Abstract

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The present invention relates to imidazoquinazoline derivatives represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, cycloalkyl, lower alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroarylalkyl, or substituted or unsubstituted heteroaryl, R.sup.2 and R.sup.3 represent independently hydrogen, substituted or unsubstituted lower alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroarylalkyl, or substituted or unsubstituted heteroaryl, or R.sup.2 and R.sup.3 are combined to represent a heterocyclic group containing a nitrogen atom, R.sup.4 represents hydrogen or substituted or unsubstituted lower alkyl, X represents O or S, Y represents a single bond or O, n represents 0, 1, 2, or 3, and pharmaceutically acceptable salts thereof.

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Patent Owner(s)

Patent OwnerAddress
KYOWA HAKKO KOGYO CO LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichimura, Michio Mishima, JP 29 440
Kase, Hiroshi Koganei, JP 77 669
Machii, Daisuke Naka-gun, JP 10 32
Ohno, Tetsuji Sunto-gun, JP 31 333
Onoda, Yasuo Sunto-gun, JP 5 18
Sasaki, Shin-ichi Sunto-gun, JP 2 19
Takai, Haruki Yokohama, JP 23 143
Yamada, Koji Sagamihara, JP 290 2945

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