2,4-Diamino 5-bromo 6-chloro pyrimidines, process for their prep

Details 2,4-Diamino 5-bromo 6-chloro pyrimidines, process for their prep 2,4-Diamino 5-bromo 6-chloro pyrimidines, process for their prep

1976-05-20

1977-09-27

Friedman, Stanley J.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

2602564N, 424251, A61K 31495, A61K 31505, C07D23900

Patent

active

040512444

ABSTRACT:
Compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.3 represent hydrogen or alkyl containing 1 to 4 carbons; R.sub.2 and R.sub.4 represent hydrogen, alkyl containing 1 to 8 carbons, dialkylaminoalkyl or aryl, ##STR2## may also represent the piperazinyl group which may be substituted in the 4 position by methyl, phenyl or benzyl.
Compounds have pharmaceutical utility.

REFERENCES:
patent: 3259623 (1966-07-01), Kober et al.
patent: 3892554 (1975-07-01), Schneider
patent: 3932408 (1976-01-01), Eck et al.

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