Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1991-09-06
1994-07-12
Bernhardt, Emily
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
540543, 540546, 540547, 540555, 544 6, 544 14, 544 32, 544 71, 544 89, 544231, 544246, 548147, 548148, 548149, 548150, 548216, 548217, 548224, 5483011, 5483017, 5483024, 503223, C07D48704, C07D48710
Patent
active
053290062
ABSTRACT:
Chromogenic lactam compounds of the formula ##STR1## in which the ring A is an aromatic or heteroaromatic radical which has 6 ring atoms and may contain a fused aromatic ring, it being possible for both the ring A and the fused ring to be substituted;
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Baumann Hans
Fletcher Ian J.
Bernhardt Emily
Ciba-Geigy Corporation
Dohmann George R.
Mathias Marla J.
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