2-Substituted-s-triazolo[1,5a]pyrimidines

Details 2-Substituted-s-triazolo[1,5a]pyrimidines 2-Substituted-s-triazolo[1,5a]pyrimidines

1975-05-22

1977-07-19

Schenkman, Leonard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602471L, 42424852, 424251, C07D23900

Patent

active

040368408

ABSTRACT:
2-Substituted-s-triazolo[1,5a]pyrimidines are disclosed which are useful as inhibitors of phosphodiesterase enzymes or intermediates in the production process. Such compounds are of the following structure: ##STR1## wherein X, R, R.sub.1, R.sub.2 and R.sub.3 are as defined hereinafter.

REFERENCES:
patent: 2449225 (1948-09-01), Heimbach et al.
patent: 2566659 (1951-09-01), Fry
patent: 2933388 (1960-04-01), Knott

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