Spiro derivatives of the pyrazolo [1,5-d] [1,2,4] triazine ring

Details Spiro derivatives of the pyrazolo [1,5-d] [1,2,4] triazine ring Spiro derivatives of the pyrazolo [1,5-d] [1,2,4] triazine ring

1982-11-17

1984-09-04

Ford, John M.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

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

544184, C07D48704, A61K 3153, A61K 31415

Patent

active

044696922

ABSTRACT:
A spiro derivative of the pyrazolo [1,5-d] [1,2,4] triazine ring system of the formula I ##STR1## wherein R.sub.1 and R.sub.2 represent, independently from each other, a hydrogen atom or a C.sub.1-4 alkyl group,

REFERENCES:
patent: 3840537 (1974-10-01), Garside et al.
patent: 4168964 (1979-09-01), Walworth

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