Crystal structure of ethyl (2S,2′R)-1′-benzyl-3-oxo-3H-dispiro[1-benzothiophene-2,3′-pyrrolidine-2′,11′′-indeno[1,2-b]quinoxaline]-4′-carboxylate

Acta Crystallographica Section E: Crystallographic Communications

M. Suresh¹  R. Raghunathan¹  J. Govindaraj²  A. SubbiahPandi³  R. Raja³ 

[1] Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 602 025, India;Department of Physics, Pachaiyappa's College for Men, Kanchipuram 631 501, India;Department of Physics, Presidency College (Autonomous), Chennai 600 005, India;

关键词: crystal structure;    dispiro compounds;    ester;    hydrogen bonding;    benzothiophene;    pyrrolidine;    indeno[1,2-b]quinoxaline;    biological activity;    π–π interactions;   

DOI  :  10.1107/S2056989015003187

来源: DOAJ

【 摘 要 】

In the title compound, C35H27N3O3S, the spiro-linked five-membered rings both adopt twisted conformations. The pyrrolidine ring makes dihedral angles of 80.5 (1) and 77.4 (9)° with the benzothiophene ring system and the quinoxaline ring system, respectively. The S atom and C=O unit of the benzothiophene ring system are disordered over two opposite orientations in a 0.768 (4):0.232 (4) ratio. The atoms of the ethyl side chain are disordered over two sets of sites in a 0.680 (16):0.320 (16) ratio. In the crystal, molecules are linked by C—H...O, C—H...N and π–π interactions [shortest centroid–centroid distance = 3.4145 (19) Å], resulting in a three-dimensional network.

【 授权许可】

Unknown