Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 6 (June 2013)


organic compounds



hg5317 scheme

Acta Cryst. (2013). E69, o980    [ doi:10.1107/S1600536813014256 ]

Rupatadine

M. Kaur, J. P. Jasinski, Z. A. Luopa, N. Kumar, N. G. Patel, O. Gudaparthi and H. S. Yathirajan

Abstract: In the title compound (systematic name: 8-chloro-11-{1-[(5-methylpyridin-3-yl)methyl]piperidin-4-ylidene}-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine), C26H26ClN3, the dihedral angle between the mean planes of the chlorophenyl and cyclohepta[1,2-b]pyridinyl rings fused to the cycloheptane ring is 56.6 (1)°. The mean planes of the cyclohepta[1,2-b]pyridinyl and 5-methylpyridin-3-yl rings are twisted by 64.9 (4)°. The central piperizene group is in a slightly distorted chair configuration. A weak intramolecular C-H...N interaction is observed between the cyclohepta[1,2-b]pyridinyl and piperidin-4-ylidene moieties.


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