1-(Dimethylamino)-3-ethyl-5,12-dihydroquino[2,3-b]acridine-7,14-dione
1-(Dimethylamino)-3-ethyl-5,12-dihydroquino[2,3-b]acridine-7,14-dione ??
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1-(Dimethylamino)-3-ethyl-5,12-dihydroquino[2,3-b]acridine-7,14-dione C??? ??, ??, ??
1-(Dimethylamino)-3-ethyl-5,12-dihydroquino[2,3-b]acridine-7,14-dione ?? ?? ? ???
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1-(Dimethylamino)-3-ethyl-5,12-dihydroquino[2,3-b]acridine-7,14-dione ?? ??
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