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3?-Hydr-oxy-ent-atis-16-en-14-one.


ABSTRACT: The title compound, C(20)H(30)O(2), is an ent-atisane diterpenoid which was isolated from the roots of Euphorbia kansuensis. The mol-ecule contains five six-membered rings, among which three six-membered rings of the bicyclo-[2.2.2]octane unit adopt boat conformations and two cyclo-hexane rings adopt chair conformations. In the crystal structure, mol-ecules are connected by inter-molecular O-H?O hydrogen bonds, forming zigzag chains propagating parallel to [001].

SUBMITTER: Wang H 

PROVIDER: S-EPMC2977182 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature

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3α-Hydr-oxy-ent-atis-16-en-14-one.

Wang Huan H   Yu Kai-Bei KB   Ding Li-Sheng LS   Luo Xiao-Duo XD   Zhang Xiao-Feng XF  

Acta crystallographica. Section E, Structure reports online 20090711 Pt 8


The title compound, C(20)H(30)O(2), is an ent-atisane diterpenoid which was isolated from the roots of Euphorbia kansuensis. The mol-ecule contains five six-membered rings, among which three six-membered rings of the bicyclo-[2.2.2]octane unit adopt boat conformations and two cyclo-hexane rings adopt chair conformations. In the crystal structure, mol-ecules are connected by inter-molecular O-H⋯O hydrogen bonds, forming zigzag chains propagating parallel to [001]. ...[more]

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