Received 27 May 2013
aS.Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str., 77, Tashkent 100170, Uzbekistan,bInstitute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str., 83, Tashkent 100125, Uzbekistan, and cTashkent Institute of Irrigation and Melioration, Kori-Niyoziy Str., 39, Tashkent, 100000, Uzbekistan
Correspondence e-mail: firstname.lastname@example.org
The title compound, C19H20N2O·C2H5OH, is an ethanol solvate of an indol alkaloid which was extracted from the plant Vinca erecta. The fused piperidine ring adopts an approximate boat conformation and the pyrrolidine ring an envelope conformation with one of the methylene C atoms at the flap. An intramolecular N-HO hydrogen bond forms an S6 ring motif. In the crystal, norfulorocurarine and ethanol molecules are linked into a chain along the c-axis direction through N-HO and O-HN hydrogen bonds.
For the biological activity of plants containing norfluorocurarine class alkaloids, see: Lavrenova & Lavrenov (1997). For the isolation of norfluorocurarine from the plant Vinca erecta, see: Yunusov & Yuldashev (1952, 1957). For the physical properties and crystal structures of several norfluorocurarine solvates, see: Tashkhodjaev et al. (2011).
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXS97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: IS5277 ).
We thank the Academy of Sciences of the Republic of Uzbekistan for supporting this study (grant No. FA-F7-T185)
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