Abstract
The title compound, C20H30O6, a natural ent-kaurane diterpenoid, named nervosanin B, was obtained from the medicinal plant Isodon serra. It is composed of four rings with the expected trans and cis junctions. One of the six-membered rings is in a chair conformation, the other two are in boat conformations and the five-membered ring adopts an evenlope conformation. The molecules stack along the a axis and are linked together by intermolecular O—H⋯O hydrogen bonds. Two intramolecular O—H⋯O interactions also occur.
Highlights
The title compound, C20H30O6, a natural ent-kaurane diterpenoid, named nervosanin B, was obtained from the medicinal plant Isodon serra
H atoms treated by a mixture of independent and constrained refinement max = 0.31 e Å3
It is composed of four rings with the expected trans and cis junctions
Summary
Cuic and Xue-Mei Dia a School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People’s Republic of China, bSchool of Nursing, Xinxiang Medical University, Xinxiang, Henan 453003, People’s Republic of China, and cHenan College of Traditional Chinese Medicine, Zhengzhou, Henan 450008, People’s Republic of.
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