C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/242.01
C07D 487/04 (2006.01)
Patent
CA 1274828
ABSTRACT OF THE DISCLOSURE: Certain triazolo[1,5-c]pyrimidines and their pharmaceutic- ally acceptable acid addition salts are useful as broncho- dilator agents. The compounds may be produced by a process wherein triazolo[4,3-c]-pyrimidines substituted on the 7-position through a nitrogen atom which is part of a heterocyclic ring are rearranged to provide the corres- ponding 7-substituted triazolo[1,5-c]pyrimidines by the catalytic action of an organic base in a protic solvent.
516196
Riker Laboratories Inc.
Robic Robic & Associes/associates
LandOfFree
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