1314877-58-1Relevant articles and documents
A simple one-pot, three component synthesis of 3-arylpyrimido[4,5-c] pyridazine-5,7(6h,8h)-diones and their sulfur analogues as potential monoamine oxidase inhibitors
Rimaz, Mehdi,Khalafy, Jabbar,Pesyan, Nader Noroozi,Prager, Rolf H.
, p. 507 - 510 (2010)
Several new 3-arylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-diones and 3-aryl-5-oxo-7-thioxo-7,8-dihydropyrimido[4,5-c]pyridazin-5(6H)-ones have been synthesized by a three-component reaction of barbituric acid or thiobarbituric acid with arylglyoxals in the presence of a catalytic amount of pyridine and hydrazine hydrate at room temperature in water.