422570-02-3Relevant articles and documents
Synthesis of pyrimidinones by action of benzamidine on a benzocycloheptenic β-keto ester
Muller, Nadine,Granet, Robert,Lepage, Lucette,Krausz, Pierre,Laval, Jean-Paul
, p. 1447 - 1452 (2007/10/03)
The synthesis of a polycyclic heterocyclic ring system compound, ethyl 7-hydroxy-4-oxo-2-phenyl-4,5-dihydro-3H-benzo[6,7]cyclohepta[ 1,2-d]pyrimidine-6-carboxylate was carried out by condensation of benzamidine on diethyl 5,9-dihydroxy-7H-benzo[a]cycloheptene-6,8-dicarboxylate, after opening and then closure of the seven membered ring.