C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/222, 260/254
C07D 403/04 (2006.01) A61K 31/505 (2006.01) C07D 257/06 (2006.01) C07D 317/68 (2006.01) C07D 405/12 (2006.01) C07D 491/04 (2006.01) C07D 491/056 (2006.01)
Patent
CA 1254204
ABSTRACT OF THE DISCLOSURE 3-(1H-tetrazol-5-yl)-4(3H)-quinazolinones useful as antiallergic agents are described herein. The compounds are prepared by the reaction of an appropriate 2-amino-N- (1H-tetrazol-5-yl)benzamide with an appropriate ortho- ester.
419538
Peet Norton P.
Sunder Shyam
Osler Hoskin & Harcourt Llp
The Dow Chemical Company
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