Chemical process for the preparation of imidazo-quinoxalines and

Details Chemical process for the preparation of imidazo-quinoxalines and Chemical process for the preparation of imidazo-quinoxalines and

1989-11-08

1991-03-12

Berch, Mark

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

544346, 544354, C07D48704, C07D24144, A61K 31495, C07B 3706

Patent

active

049993534

ABSTRACT:
The invention relates to a dealkylation chemical process for preparing imidazoquinoxalines bearing hydrogen substitution in the five position, and to valuable pharm-intermediates of the formula I ##STR1## wherein ##STR2## wherein R' is C.sub.1-6 -alkyl, C.sub.3-7 -cycloalkyl, phenyl, thienyl, or C.sub.1-3 -alkoxymethyl

REFERENCES:
patent: 4440929 (1984-04-01), Lee
patent: 4774245 (1988-09-01), Watjen
patent: 4873244 (1989-10-01), Watjen
Watjen I, Chem. Abs. 110, 57685.
Watjen III, Chem. Abs. 109, 110456e (1987).

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