Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1988-08-16
1990-03-27
Shah, Mukund J.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
514267, 540498, 540548, 544251, A61K 31505, C07D48714
Patent
active
049121049
ABSTRACT:
Novel tricyclic fused pyrimidine derivatives represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are independently C.sub.1-8 alkyl or C.sub.2-8 alkenyl;
REFERENCES:
patent: 3637684 (1972-06-01), Goldman
patent: 3810894 (1974-05-01), Kranz et al.
patent: 4603203 (1986-07-01), Furukawa et al.
Golec, et al., Chemical Abstracts, vol. 109(3): 22928e (1988).
Naka Takehiko
Saijo Taketoshi
Satoh Hiroshi
Rivers Diana G.
Shah Mukund J.
Takeda Chemical Industries Ltd.
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