C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/242.5
C07D 495/04 (2006.01)
Patent
CA 1301153
ABSTRACT OF THE DISCLOSURE 3-(lH-Tetrazol-5-yl)thieno[2,3-d]pyrimidin-4(3H)-ones useful as antiallergic agents are described herein. The compounds are prepared by cyclization of an appropriate substituted amidine using an alkali metal base. The reac- tion is carried out in an appropriate inert solvent. C-34006
530164
Peet Norton P.
Sunder Shyam
Vinogradoff Anna P.
Gowling Lafleur Henderson Llp
Merrell Dow Pharmaceuticals Inc.
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