In the title compound, C22H15N3O, the dihedral angle between the two indole units is 33.72 (3)°. The mol-ecular structure features a weak intra-molecular C-H⋯N inter-action. In the crystal, weak C-H⋯O and C-H⋯π inter-actions, forming a two-dimensional network parallel to the bc plane.
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http://dx.doi.org/10.1107/S1600536813034375 | DOI Listing |
Zhongguo Zhong Yao Za Zhi
October 2014
Taking application of some isolation and purification technologies, such as solvent extraction, preliminary solvent isolation, column chromatographies over silica gel and Sephadex LH-20 gel and preparative HPLC, 10 compounds were obtained from Gynura nepalensis cultivated in the suburban area of Beijing. Their structures were identified by spectroscopic methods and comparison with literature as (3R) -3-hydroxy-β-ionone (1), (3S,5R, 6S, 7E) -5, 6-epoxy-3-hydroxy-7-megastigmen-9-one (2), (+) -boscialin (3), 3, 6-trans-3-hydroxy-α-ionone (4), 3, 6-cis-3-hydroxy-α-ionone (5), 3, 4-cis-3, 4-dihydroxy-β-ionone (6), ethyl caffeate (7), loliolide (8), 1H-indole-3-carbaldehyde (9), and 3-(hydroxyacetyl)indole (10), respectively. All compounds were isolated from the title plant for the first time, and with compounds 1, 2, 4-7, 9 and 10 being isolated from Gynura species for the first time.
View Article and Find Full Text PDFActa Crystallogr Sect E Struct Rep Online
February 2014
Department of Research and Development, PRIST University, Vallam, Thanjavur 613 403, Tamil Nadu, India.
In the title compound, C22H15N3O, the dihedral angle between the two indole units is 33.72 (3)°. The mol-ecular structure features a weak intra-molecular C-H⋯N inter-action.
View Article and Find Full Text PDFActa Crystallogr Sect E Struct Rep Online
February 2013
Post Graduate and Research Department of Physics, Agurchand Manmull Jain College, Chennai 600 114, India.
In the title compound, C(28)H(24)ClNO(3), the dihedral angles between the central benzene ring and the indole ring system and the chlorobenzene ring are 70.81 (5) and 78.62 (5)°, respectively.
View Article and Find Full Text PDFActa Crystallogr Sect E Struct Rep Online
November 2012
Department of Studies in Physics, Manasagangotri, University of Mysore, Mysore 570 006, India.
In the title compound, C(9)H(7)NO, the benzene ring forms a dihedral angle of 3.98 (12)° with the pyrrole ring. In the crystal, N-H⋯O hydrogen bonds links the mol-ecules into chains which run parallel to [02-1].
View Article and Find Full Text PDFIn the title compound, C(17)H(15)NO, the benzene ring and the indole system are almost perpendicular, making a dihedral angle of 87.82 (6)°. The crystal packing is stabilized by C-H⋯O and π-π stacking inter-actions with centroid-centroid distances of 3.
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