Tricyclic 1,2,4-triazolo-quinazolines

Details Tricyclic 1,2,4-triazolo-quinazolines Tricyclic 1,2,4-triazolo-quinazolines

1975-06-25

1977-10-11

Jiles, Henry R.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

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

42424856, 544115, 544119, C07D48704, A61K 31505

Patent

active

040536009

ABSTRACT:
The invention discloses 5-substituted-1,2,4-triazolo[4,3-c]quinazolines and 1,2,4-triazolo[1,5-c]quinazolines having pharmacological activity in animals and useful, for example, as hypotensive and anti-inflammatory agents. The compounds may be prepared, for example, by reacting a 5-halo-1,2,4-triazolo-quinazoline with a compound representing the function to be introduced at the 5-position. The 5-halo-1,2,4-triazolo[4,3-c]quinazolines also have pharmacological activity, e.g., hypotensive and anti-inflammatory activity, and may be prepared by reacting a 4-hydrazino-quinazoline with trimethoxy methane. The 5-halo-1,2,4-triazolo[1,5-c]quinazolines also have hypotensive and anti-inflammatory activity and are prepared from the corresponding 1,2,4-triazolo-[1,5-c]quinazolin-5(1H)-one using phosphorus oxychloride, the quinazolin-5(1H)-one being in turn prepared from the 5-halo-1,2,4-triazolo[4,3-c]quinazoline.

REFERENCES:
patent: 3838126 (1974-09-01), Wagner

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