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Ent-5?,3,15-Dioxodolabr-4(18)-ene-16,18-diol.

ABSTRACT: The title compound, C(20)H(30)O(4), is a dolabrane diterpenoid isolated from Ceriops tagal, in which one of the three fused cyclo-hexane rings adopts a half-chair conformation and the other two are in the standard chair conformations. The hy-droxy-methyl-idene substituent is attached to the half-chair cyclo-hexane. An intra-molecular O-H?O hydrogen bond generate an S(6) ring motif. In the crystal, mol-ecules are arranged into screw chains along the [001] direction. The crystal is stabilized by O-H?O hydrogen bonds and weaker C-H?O inter-actions.

SUBMITTER: Fun HK

PROVIDER: S-EPMC3009018 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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ent-5α,3,15-Dioxodolabr-4(18)-ene-16,18-diol.

Fun Hoong-Kun HK Pakathirathien Charoen C Karalai Chatchanok C Chantrapromma Suchada S

Acta crystallographica. Section E, Structure reports online 20101023 Pt 11

The title compound, C(20)H(30)O(4), is a dolabrane diterpenoid isolated from Ceriops tagal, in which one of the three fused cyclo-hexane rings adopts a half-chair conformation and the other two are in the standard chair conformations. The hy-droxy-methyl-idene substituent is attached to the half-chair cyclo-hexane. An intra-molecular O-H⋯O hydrogen bond generate an S(6) ring motif. In the crystal, mol-ecules are arranged into screw chains along the [001] direction. The crystal is stabilized by O ...[more]

PMID: 21589075

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