Methyl (3S,3'R)-1-methyl-2,2''-dioxo-1',2',3',5',6',7',8',8a'-octa-hydro-dispiro-[indoline-3,2'-indolizine-3',3''-indoline]-1'-carboxyl-ate.

ABSTRACT: In the title compound, C(25)H(25)N(3)O(4), the central pyrrolidine ring and the two pyrrolidine rings adopt twisted conformations, whereas the piperidine ring in the octa-hydro-indolizine fused ring system adopts a chair conformation. The indoline ring systems are almost perpendicular with respect to the mean plane of the octa-hydro-indolizine ring system, making dihedral angles of 84.4 (5) and 79.4 (5)°. The acetate group attached to the octa-hydro-indolizine ring system assumes an extended conformation. In the crystal, N-H⋯O hydrogen bonds result in the formation of a helical C(7) chain running parallel to [101]. The crystal packing features C-H⋯O hydrogen bonds and C-H⋯π inter-actions.

SUBMITTER: Ganesh G 

PROVIDER: S-EPMC3470251 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature