X-Ray Structure Analysis of Substituted 5-( 2 , 3-Dihydro-7-benzofuryl )-l-methylpyrazolo [ 4 , 3-cnpyrimidin-7-one ( Biagra ) [ 1 ]

  • Wolfgang Voelter, Cäcilia Maichle-Mössmerb, +2 authors Salim S. Sabric
  • Published 2013
X-ray crystal structure data for the title compound dihydrobenzofuryl-pyrazolo[4,3-d]pyrimidin-7-one (2) reveal that the two bicyclic heteroaryl systems are virtually coplanar along their joint C (5)-C (ll) axis with an interplanar angle of 1.13°. This planar conformation is held by an intramolecular hydrogen bond between the pyrimidinone N(6)-H and the 0… (More)