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Bis[3?,7?,12?-tris-(4-nitro-benzo-yloxy)-5?-cholan-24-yl] disulfide-ethyl acetate-n-hexane (4/4/1).


ABSTRACT: The crystal structure of the title compound, C(90)H(100)N(6)O(24)S(2)·C(4)H(8)O(2)·0.25C(6)H(14), solved and refined against synchrotron diffraction data, contains two formula units in the asymmetric unit with the all-trans n-hexane mol-ecule having half-occupancy and one of the ethyl acetate mol-ecules disordered over two positions. The two symmetry-independent disulfide mol-ecules are assembled by approximate face-to-face and face-to-edge inter-actions between their 4-nitro-benzo-yloxy groups into an inter-twined dimer having a double-helix-type structure. The centrally placed disulfide bridges in the two symmetry-independent mol-ecules exhibit different helicity as shown by the C-S-S-C torsion angles of 71.0?(1) and -92.5?(1)°.

SUBMITTER: Brzezinski K 

PROVIDER: S-EPMC3050291 | BioStudies | 2010-01-01

REPOSITORIES: biostudies

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