B. Revathi, S. Sathya, G. Usha
Jan 23, 2013
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
In the title compound, C21H20FN3O5, the the pyrrolidine ring makes dihedral angles of 84.91 (6) and 62.38 (7)° with the oxindole unit and the fluorophenyl ring, respectively. The pyrrolidine ring assumes an envelope conformation with the spiro C atom as the flap. The crystal packing features weak N—H⋯N and C—H⋯O hydrogen bonds.