Patent ID: 11932605
Assignee: KING FAISAL UNIVERSITY
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A  Y | IPC A  C

Claim 9:
10. A method of making the 9-(4-nitrobenzylidene)-4-(4-nitrophenyl)-3-cyano-2-methoxy-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridine compound of claim 1, the method comprising:
adding cycloheptanone, 4-nitrobenzaldehyde, malononitrile, and sodium methoxide to absolute methanol to obtain a reaction mixture;
refluxing the reaction mixture;
cooling the reaction mixture to room temperature and pouring the reaction mixture into crushed ice;
filtering, washing, and drying a formed precipitate;
recrystallizing a solid from ethanol; and
obtaining the 9-(4-nitrobenzylidene)-4-(4-nitrophenyl)-3-cyano-2-methoxy-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridine compound.