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Crystal structure of natural phaeosphaeride A.


ABSTRACT: The asymmetric unit of the title compound, C15H23NO5, contains two independent mol-ecules. Phaeosphaeride A contains two primary sections, an alkyl chain consisting of five C atoms and a cyclic system consisting of fused five- and six-membered rings with attached substituents. In the crystal, the mol-ecules form layered structures. Nearly planar sheets, parallel to the (001) plane, form bilayers of two-dimensional hydrogen-bonded networks with the hy-droxy groups located on the inter-ior of the bilayer sheets. The network is constructed primarily of four O-H?O hydrogen bonds, which form a zigzag pattern in the (001) plane. The butyl chains inter-digitate with the butyl chains on adjacent sheets. The crystal was twinned by a twofold rotation about the c axis, with refined major-minor occupancy fractions of 0.718?(6):0.282?(6).

SUBMITTER: Abzianidze VV 

PROVIDER: S-EPMC4571431 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

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Crystal structure of natural phaeosphaeride A.

Abzianidze Victoria V VV   Poluektova Ekaterina V EV   Bolshakova Ksenia P KP   Panikorovskii Taras L TL   Bogachenkov Alexander S AS   Berestetskiy Alexander O AO  

Acta crystallographica. Section E, Crystallographic communications 20150731 Pt 8


The asymmetric unit of the title compound, C15H23NO5, contains two independent mol-ecules. Phaeosphaeride A contains two primary sections, an alkyl chain consisting of five C atoms and a cyclic system consisting of fused five- and six-membered rings with attached substituents. In the crystal, the mol-ecules form layered structures. Nearly planar sheets, parallel to the (001) plane, form bilayers of two-dimensional hydrogen-bonded networks with the hy-droxy groups located on the inter-ior of the  ...[more]

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