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- W2060062554 abstract "4-Amino-3-pyridinioquinolin-2(1H)-one Chlorides and 3,4-Diaminoquinolin-2(1H)-ones N;-(Chloroacetyl)anthranilonitriles 1 react with the pyridines 2 to form the 4-amino-3-pyridinioquinolin-2(1H)-one chlorides 4, which are converted into the pyrido[1',2′ : 1,2]imidazo[5,4-c]- quinolin-6(5H)-ones 6 in the presence of sodium hydroxide or by cyclooxidation with bromine. Treatment of 4 with hydrazine hydrate yields the 3,4-diaminoquinolin-2(1H)-ones 9. Analogously to other o-diamines the substituted imidazo [4,5-c]- quinolinones 12, the pyrazino[2,3-c]quinolinones 13, 14, the 1,2,5-thiadiazolo[3,4-c]quinolin-4-one 15a and the 1,2,5-selena-diazolo[3,4-c]quinolin-4-one 15b are obtainable from 9a. With chloroacetyl chloride 9a provides the oxazino[2,3-b]quinolin-2-one 11." @default.
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- W2060062554 date "1991-05-01" @default.
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- W2060062554 title "4‐Amino‐3‐pyridiniochinolin‐2(1 <i>H</i> )‐on‐chloride und 3,4‐Diaminochinolin‐2(1 <i>H</i> )‐one" @default.
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- W2060062554 doi "https://doi.org/10.1002/cber.19911240542" @default.
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