Okuda Kensuke, Hirota Takashi, Nishina Yuta, Ishida Hiroyuki
Laboratory of Medicinal and Pharmaceutical Chemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan.
Acta Crystallogr Sect E Struct Rep Online. 2012 Nov 1;68(Pt 11):o3252. doi: 10.1107/S1600536812044261. Epub 2012 Oct 31.
In the title compound, C(14)H(13)ClN(2)O, the fused hydro-pyrimidine ring adopts an envelope conformation with one of the methyl-ene C atoms at the flap. The three-membered ring is approximately perpendicular to the attached isoquinoline ring system, with a dihedral angle of 89.44 (11)°. In the crystal, mol-ecules are linked by a weak C-H⋯π inter-action, forming a helical chain along the c axis.