title: N-Methyl-2-thio-cytisine.
abstract: The rings of the three-ring cytisine system in the title compound [systematic name: (1R,5S)-1,2,3,4,5,6-hexa-hydro-1,5-methano-8H-pyrido[1,2-a][1,5]diazo-cine-8-thione], C(12)H(16)N(2)S, have planar [maximum deviation 0.0170 (7) Å], half-chair and chair conformations. In the crystal structure, relatively short and directional C-H⋯π inter-actions and weaker secondary C-H⋯S contacts join the mol-ecules into helical chains along the [001] direction.
authors: Department of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland.
authors: Anita M
authors: AM
authors: Owczarzak
authors: Anna K
authors: AK
authors: Przybył
authors: Maciej
authors: M
authors: Kubicki
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