A diastereomer of methyl (1R,3′S)-1′,1′′-dimethyl-2,2′′-dioxo-2H-dispiro[acenaphthylene-1,2′-pyrrolidine-3′,3′′-indoline]-4′-carboxylate
oleh: Arunachalathevar SubbiahPandi, Boreddy Siva Rami Reddy, Piskala Subburaman Kannan, PanneerSelvam Yuvaraj, Gnanavelu Ganesh
| Format: | Article |
|---|---|
| Diterbitkan: | International Union of Crystallography 2013-03-01 |
Deskripsi
In the title compound, C26H22N2O4, the central pyrrolidine ring adopts a twist conformation and the cyclopentane ring of the dihydroacenapthylene group adopts an envelope conformation with the spiro C atom as the flap. The naphthalene ring system of the dihydroacenaphthylene group forms dihedral angles of 83.4 (9) and 61.3 (7)°, respectively, with the mean planes of the pyrrolidine and indole rings. The crystal packing is stabilized by intermolecular C—H...O hydrogen bonds. The title compound is a diastereomer of a previously reported structure.