Crystal constructure of 16(S)-methyl-6α-carboxy-1, 15-dioxo-6, 7-seco-ent-kaur-2-en-7, 20-olide, C20H24O6
نویسندگان
چکیده
منابع مشابه
15α,20β-Dihydroxy-6β-methoxy-6,7-seco-6,20-epoxy-1,7-olide-ent-kaur-16-ene
The title compound, C(21)H(30)O(6), a natural ent-kaurane diterpenoid, was obtained from the medicinal plant Isodon serra. The five rings in the mol-ecule exhibit the expected cis and trans junctions. The three six-membered rings adopt chair, twist-boat and boat conformations, while two five-membered rings adopt envelope conformations. There are two mol-ecules in the asymmetric unit, related by...
متن کامل1α,11α,15β-Triacetoxy-7β-hydroxy-7α,20-epoxy-ent-kaur-16-en-6-one
The title compound, C(26)H(34)O(9), a natural ent-kaurane diterpenoid, is composed of four rings with the expected cis and trans junctions. In the crystal structure, the mol-ecules stack along the a axis and are linked together by inter-molecular O-H⋯O hydrogen bonds.
متن کاملThe microbiological transformation of two 15beta-hydroxy-ent-kaurene diterpenes by Gibberella fujikuroi.
The incubation of 15beta-hydroxy-3-oxo-ent-kaur-16-ene (1) with the fungus Gibberella fujikuroi afforded 11beta-hydroxy-3,15-dioxo-ent-kaurane (6), 11beta,15beta-dihydroxy-3-oxo-ent-kaur-16-ene (8), 7beta,11beta,15beta-trihydroxy-3-oxo-ent-kaur-16-ene (9), 7alpha,11beta-dihydroxy-3,15-dioxo-ent-kaurane (7), and 7alpha,11beta,15beta-trihydroxy-3-oxo-ent-kaur-16-ene (10). The incubation of 15beta...
متن کاملCrystal structure of 4α-hydroxy-5α,8β(H)-eudesm-7(11)-en-8,12-olide monohydrate
The title compound, C15H22O3·H2O, is a natural producr isolated from Chloranthus japonicus, which is a eudesmane sesquiterpenoid. The two trans-fused six-membered rings have chair confomations. In the crystal, O-H⋯O hydrogen bonds link the components into corrugated layers parallel to the bc plane. There are C-H⋯O inter-actions present within and between the layers.
متن کامل6β,8β-Dihydroxyeremophil-7(11)-en-8α,12-olide
The title compound, C(15)H(22)O(4), an eremophilane sesquiternoid, was isolated from the roots of Ligularia virgaurea. Both six-membered rings (A and B) adopt chair conformations and the five-membered ring is almost planar (r.m.s. deviation = 0.016 Å). The two methyl and two hy-droxy groups adopt a syn conformation and the A/B ring junction is cis-fused. An intra-molecular O-H⋯O hydrogen bond g...
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ژورنال
عنوان ژورنال: Zeitschrift für Kristallographie - New Crystal Structures
سال: 2017
ISSN: 2197-4578,1433-7266
DOI: 10.1515/ncrs-2016-0112