✦ LIBER ✦

Sampsoniones A–M, a Unique Family of Caged Polyprenylated Benzoylphloroglucinol Derivatives, from Hypericum sampsonii

✍ Scribed by Li-Hong Hu; Keng-Yeow Sim

Publisher: Elsevier Science
Year: 2000
Tongue: French
Weight: 155 KB
Volume: 56
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(00)00010-7

No coin nor oath required. For personal study only.

✦ Synopsis

Further thorough investigation of the ethanolic extract of the aerial parts of Hypericum sampsonii has yielded sampsoniones K-M which together with the earlier isolated sampsoniones A-J form a unique family of related polyprenylated benzoylphloroglucinol derivatives formed by complex cyclisations of prenyl groups. The structures of these cage compounds have been elucidated by extensive studies of various spectrometric techniques. The 13 metabolites, some of which are bioactive, are probably biosynthesized from a simple common benzoylphloroglucinol precursor.

📜 SIMILAR VOLUMES

ChemInform Abstract: Sampsoniones A—M, a

ChemInform Abstract: Sampsoniones A—M, a Unique Family of Caged Polyprenylated Benzoylphloroglucinol Derivatives, from Hypericum sampsonii.

✍ Li-Hong Hu; Keng-Yeow Sim 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 1 views

Complex caged polyisoprenylated benzophe

Complex caged polyisoprenylated benzophenone derivatives, sampsoniones A and B, from Hypericum sampsonii

✍ Li-Hong Hu; Keng-Yeow Sim 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 240 KB

The aerial parts of the Chinese medicinal plant Hypericum sampsonii yielded two novel metabolites, sampsoniones A and B, which are characterised by their unique tetracyclo-polyketonic core with benzoyl, 3methyl-2-butenyl and geranyl substituents. Their structures were determined by detailed spectral

ChemInform Abstract: Complex Caged Polyi

ChemInform Abstract: Complex Caged Polyisoprenylated Benzophenone Derivatives, Sampsoniones A and B, from Hypericum sampsonii

✍ L.-H. HU; K.-Y. SIM 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 26 KB 👁 1 views

Sampsoniones CH, a unique family of pol

Sampsoniones CH, a unique family of polyprenylated benzophenone derivatives with the novel tetracyclo[7.3.1.13,11.03,7]tetradecane-2,12,14-trione skeleton, from Hypericum sampsonii(Guttiferae)

✍ Li-Hong Hu; Keng-Yeow Sim 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 268 KB

ChemInform Abstract: Sampsoniones C—H, a

ChemInform Abstract: Sampsoniones C—H, a Unique Family of Polyprenylated Benzophenone Derivatives with the Novel Tetracyclo [7.3.1.13,11.03,7]tetradecane-2,12,14-trione Skeleton, from Hypericum sampsonii(Guttiferae).

✍ Li-Hong Hu; Keng-Yeow Sim 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 2 views