2,4-disubstituted pyrazine derivatives, pyrimidine derivatives,

Details 2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, 2,4-disubstituted pyrazine derivatives, pyrimidine derivatives,

1989-03-20

1991-03-05

Stoll, Robert L.

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

Organic compounds

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

25229901, 25229961, C07D24100, C09K 1934

Patent

active

049979426

ABSTRACT:
A 2,5-disubstituted pyrazine derivative and a 2,5-disubstituted pyrimidine derivative of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a straight-chain or branched alkyl group containing 1 to 20 carbon atoms;

REFERENCES:
patent: 4765924 (1988-08-01), Inoue et al.
patent: 4808333 (1989-02-01), Huyma-ba et al.
patent: 4812258 (1989-03-01), Krause et al.
patent: 4818430 (1989-04-01), Saito et al.
patent: 4820839 (1989-04-01), Krause et al.
patent: 4834904 (1989-05-01), Krause et al.

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