Chromogenic substituted 4,7-diazaphthalides

Details Chromogenic substituted 4,7-diazaphthalides Chromogenic substituted 4,7-diazaphthalides

1990-06-22

1991-08-20

Berch, Mark L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544405, C07D491048, C07D40306, B41M 512, C09B 1126

Patent

active

050415476

ABSTRACT:
The invention relates to novel substituted 4,7-diazaphthalides of the general formula ##STR1## wherein X and Y each independently of the other, are optionally substituted aminophenyl, indolyl, benzoindolyl, jujolidinyl or kairolyl radicals; and

REFERENCES:
patent: 3853869 (1974-12-01), Farker
patent: 4016174 (1977-04-01), Farker
Akamatsu Chem Abs 83, 50814(1974).

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