title: Crystal structure of 2,3-dimeth-oxy-5,6,7,8,13,13a-hexa-hydro-6a,8-di-aza-indeno-[2,1-b]phenanthrene methanol monosolvate.
abstract: The asymmetric unit of the title solvate, C21H22N2O2·CH3OH, contains one methanol solvent mol-ecule and one mol-ecule of the heterocycle that is built up by the fusion of four six-membered rings A, C, D, E and one five-membered ring B. The indole moiety (rings A and B) is essentially planar, with an r.m.s. deviation of 0.013 Å, whereas rings C and D adopt a twisted conformation with a trans-ring junction. In the crystal, two heterocyclic mol-ecules are associated with two methanol mol-ecules through mutual N-H⋯O and O-H⋯N hydrogen bonds, forming a centrosymmetric dimer.
authors.affiliation: S.Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan.
authors.forename: Shahobiddin M
authors.initials: SM
authors.lastname: Adizov
authors.affiliation: S.Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan.
authors.forename: Abdusalom Sh
authors.initials: ASh
authors.lastname: Saidov
authors.affiliation: S.Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan.
authors.forename: Kambarali K
authors.initials: KK
authors.lastname: Turgunov
authors.affiliation: S.Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan.
authors.forename: Rasul Ya
authors.initials: RY
authors.lastname: Okmanov
authors.affiliation: S.Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan.
authors.forename: Bakhodir
authors.initials: B
authors.lastname: Tashkhodjaev
keywords: crystal structure; hydrogen bonding; indole alkaloid; iso­quinoline alkaloid