Samundeeswari S, Kulkarni MV, Anil Kumar GN. Crystal structure of 4-(4b,8a-di-hydro-9
H-pyrido[3,4-
b]indol-1-yl)-7-methyl-2
H-chromen-2-one.
Acta Crystallogr E Crystallogr Commun 2017;
73:56-58. [PMID:
28083136 PMCID:
PMC5209772 DOI:
10.1107/s2056989016019769]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 12/10/2016] [Indexed: 12/04/2022]
Abstract
The title compound, C21H14N2O2, was prepared by Pictet-Spengler cyclization of tryptamine and 4-formyl coumarin. In the mol-ecule, the dihedral angle between the mean planes of the coumarin and β-carboline ring systems is 63.8 (2)°. In the crystal, mol-ecules are linked via N-H⋯N hydrogen bonds, forming chains along the b-axis direction. Within the chains, there are a number of offset π-π inter-actions present [shortest inter-centroid distance = 3.457 (2) Å].
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