The title compound, C12H9N3O, is an intermediate in the synthesis of the muscarinic M2 receptor antagonist AFDX-384. The seven-membered ring adopts a boat conformation and the dihedral angle between the planes of the aromatic rings is 41.51 (9)°. In the crystal, molecules are linked into  chains of alternating inversion dimers formed by pairs of N - H⋯O hydrogen bonds and pairs of N - H⋯N hydrogen bonds. In both cases, R22(8) loops are generated.
|Number of pages||2|
|Journal||Acta Crystallographica Section E: Structure Reports Online|
|Early online date||11 Apr 2015|
|Publication status||Published - 1 May 2015|
- Boat conformation
- Crystal structure
- Hydrogen bonding