Further diterpenes from xylopia aethiopica (anonaceae)

Ekong, D. E. U.; Olagbemi, E. O.; Odutola, F.A.

doi:10.1016/s0031-9422(00)86356-6

Cited by 24 publications

(2 citation statements)

References 2 publications

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“…Rich (Annonaceae) is a medicinal plant widely distributed in the western coast of Africa, 1 and decoctions of its bark are used in the treatment of bronchitis, bile-borne diseases, and dysentery. 2 Fractionation of a hexane extract of X. aethiopica bark has revealed the presence of a diterpene that was identified as a new trachylobane derivative (1). This work has led also to the assignment of complete 1 H-and 13 C-NMR data for 1.…”

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A Trachylobane Diterpenoid from Xylopia aethiopica

et al. 1998

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A Trachylobane Diterpenoid from Xylopia aethiopica

et al. 1998

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“…The unknown Malaysian Jungermannia species produced ent -16-kauren-15-one ( 9 ), 11 (16 R )- ent -kauren-16-ol ( 10 ), 12 ent -16-kauren-15α-ol ( 11 ), 11 ent -15-oxo-16-kauren-20-oic acid ( 12 ) 13 and isolated two new ent -15-oxo-16-kauren-20-al ( 13 ) and ent -20-hydroxy-16-kauren-15-one ( 14 ) as shown in Figure 5. Their known structures were determined as an ent -kaurene series by comparison of their spectral data with those of authentic samples and reference data.…”

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Diterpenoids From the Argentine and Malaysian Liverworts Anastrophyllum and Jungermannia Species

Nagashima

Asakawa

2019

Natural Product Communications

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We are engaged in the ongoing investigation into the chemical constituents of liverworts in our search for novel compounds and biologically active substances. In the present study, two new rosane diterpenoids were isolated from the Argentine liverwort Anastrophyllum species, together with known aromadendrane sesqui-and rosane diterpenoids. Two new entkaurene and 4 entkaurene diterpenoids were isolated from the Malaysian liverwort Jungermannia species. Their structures were determined using nuclear magnetic resonance spectroscopy techniques, circular dichroism spectroscopy, and chemical transformation.

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Chemical Variability of the Leaf Essential Oil of Xylopia aethiopica (Dunal) A.Rich. from Côte d'Ivoire

Yapi

Boti

Ahibo

et al. 2012

Chemistry & Biodiversity

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The chemical composition of 48 essential-oil samples isolated from the leaves of Xylopia aethiopica harvested in six Ivoirian forests was investigated by GC-FID and (13) C-NMR analyses. In total, 23 components accounting for 82.5-96.1% of the oil composition were identified. The composition was dominated by the monoterpene hydrocarbons β-pinene (up to 61.1%) and α-pinene (up to 18.6%) and the sesquiterpene hydrocarbon germacrene D (up to 28.7%). Hierarchical cluster and principal component analyses allowed the distinction of two groups on the basis of the β-pinene and germacrene D contents. The chemical composition of the oils of Group I (38 oil samples) was clearly dominated by β-pinene, while those of Group II (10 samples) were characterized by the association of β-pinene and germacrene D. The leaves collected in the four inland forests produced β-pinene-rich oils (Group I), while the oil samples belonging to Group II were isolated from leaves harvested in forests located near the littoral.

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Further diterpenes from xylopia aethiopica (anonaceae)

Cited by 24 publications

References 2 publications

A Trachylobane Diterpenoid from Xylopia aethiopica

A Trachylobane Diterpenoid from Xylopia aethiopica

Diterpenoids From the Argentine and Malaysian Liverworts Anastrophyllum and Jungermannia Species

Chemical Variability of the Leaf Essential Oil of Xylopia aethiopica (Dunal) A.Rich. from Côte d'Ivoire

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