Patent ID: 11905277
Assignee: KING FAISAL UNIVERSITY
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A  Y | IPC A  C

Claim 10:
11. A method of making the 2-alkyloxy-6-(2-oxo-2H-1-benzopyran-3-yl)-4-phenylpyridine-3-carbonitrile compound of claim 1, the method comprising:
adding a mixture of 3-acetyl-2H-1-benzopyran-2-one and benzaldehyde to a solution of a sodium alkoxide in an absolute alcohol with stirring to obtain a first reaction mixture;
adding malononitrile to the first reaction mixture to obtain a second reaction mixture;
irradiating the second reaction mixture followed by cooling to room temperature to obtain a crude product;
purifying the crude product by filtering and recrystallization using the absolute alcohol; and
obtaining the 2-alkyloxy-6-(2-oxo-2H-1-benzopyran-3-yl)-4-phenylpyridine-3-carbonitrile compound.