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Acta Cryst. (2013). E69, o1570
[ doi:10.1107/S1600536813024963 ]

Methyl 8-bromo-3-[1-(4-methoxyphenyl)-4-oxo-3-phenylazetidin-2-yl]-1-methyl-1,2,3,3a,4,9b-hexahydrochromeno[4,3-b]pyrrole-3a-carboxylate

P. Sharmila, G. Jagadeesan, R. Raju, R. Raghavachary and S. Aravindhan

Abstract: In the title compound, C30H29BrN2O5, the [beta]-lactam ring is essentially planar, with the O atom displaced from this plane by 0.856 (9) Å, and forming dihedral angles of 24.35 (13) and 89.42 (14)° with the planes of the benzene substituent groups on this ring. The tetrahydropyran ring adopts an envelope conformation with the C atom bearing the [beta]-lactam ring as the flap. In the crystal, weak C-H...O hydrogen bonds with carboxyl and tetrahydropyran O-atom acceptors give rise to a chain structure extending along the b-axis direction.

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