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(3R,6R,4'S,8'R,3''R,6''R)-3,3''-Diisopropyl-6,6''-dimethyl-2',6'-di-phenyl-dispiro-[cyclo-hexane-1,4'-(3,7-dioxa-2,6-di-aza-bicyclo-[3.3.0]octa-ne)-8',1''-cyclo-hexa-ne]-2,2''-dione.

ABSTRACT: The two oxazolidine rings (A and B) of the title compound, C34H44N2O4, display roughly half-chair conformations, which could be described as twisted on the C-O bond. Together, the fused oxazolidine rings have a butterfly shape, with the H atoms attached to the ring junction C atoms in a cis orientation. The cyclo-hexane rings of both p-menthone fragments display chair conformations. The absolute configuration could not be determined from the X-ray diffraction data, but the relative configuration of the stereocentres could be deduced.

SUBMITTER: Ansari A

PROVIDER: S-EPMC3770422 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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(3R,6R,4'S,8'R,3''R,6''R)-3,3''-Diisopropyl-6,6''-dimethyl-2',6'-di-phenyl-dispiro-[cyclo-hexane-1,4'-(3,7-dioxa-2,6-di-aza-bicyclo-[3.3.0]octa-ne)-8',1''-cyclo-hexa-ne]-2,2''-dione.

Ansari Abdeslam A Majidi Lhou L Fihi Rachid R Daran Jean-Claude JC Azrour Mohamed M

Acta crystallographica. Section E, Structure reports online 20130626 Pt 7

The two oxazolidine rings (A and B) of the title compound, C34H44N2O4, display roughly half-chair conformations, which could be described as twisted on the C-O bond. Together, the fused oxazolidine rings have a butterfly shape, with the H atoms attached to the ring junction C atoms in a cis orientation. The cyclo-hexane rings of both p-menthone fragments display chair conformations. The absolute configuration could not be determined from the X-ray diffraction data, but the relative configuration ...[more]

PMID: 24046707

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