Di-and trisubstituted pyridines and their preparation

Details Di-and trisubstituted pyridines and their preparation Di-and trisubstituted pyridines and their preparation

1998-04-30

1999-11-30

Rotman, Alan L.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

546291, 5462844, 546301, 435 29, C07D40104, C07D40304, C12Q 102

Patent

active

059945400

ABSTRACT:
Substituted pyridines of the general formula: ##STR1## wherein R.sup.1 is hydroxyl or chlorine, and a) X is hydrogen or chlorine, R.sup.2 and R.sup.3 together are .dbd.O, R.sup.4 is a group of the formula --OR.sup.5 and R.sup.5 is hydrogen, C.sub.1 -C.sub.4 -alkyl or benzyl or

REFERENCES:
patent: 5760236 (1998-06-01), Kiener et al.
Chemical Abstracts, vol. 91, (5), abst.no.39511w (Jul. 30, 1979).

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