5,6-Dimeth-oxy-4',5'-diphenyl-indane-2-spiro-3'-pyrrolidine-2'-spiro-3''-indoline-1,2''-dione.

ABSTRACT: In the title compound, C(33)H(28)N(2)O(4), the central pyrrolidine ring adopts a half-chair conformation. Both the indolinone and indanone groups are twisted, with their five-membered rings adopting a half-chair and an envelope conformation, respectively. The two benzene rings and the mean plane of the indolinone and indanone groups make dihedral angles of 71.98?(10), 84.32?(10), 86.26?(9) and 78.50?(9)°, respectively, with the central pyrrolidine ring. Intra-molecular C-H?O hydrogen bonds stabilize the mol-ecular conformation. In the crystal, pairs of inter-molecular N-H?O hydrogen bonds link the mol-ecules into centrosymmetric dimers. The dimers are inter-connected into ribbons propagating along [110] via weak inter-molecular C-H?O hydrogen bonds. Weak inter-molecular C-H?? and ?-? [centroid-centroid distance = 3.6509?(11)?Å] inter-actions are also observed.

SUBMITTER: Ali MA 

PROVIDER: S-EPMC2983396 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature