[The structure of tripterygone].

Area of Science:

• Phytochemistry
• Natural Products Chemistry
• Organic Chemistry

Context:

• Tripterygium wilfordii Hook F. is a plant with a history of traditional medicinal use.
• The isolation and characterization of bioactive compounds from medicinal plants are crucial for drug discovery.
• Triterpenes are a diverse class of natural products with a wide range of biological activities.

Purpose:

• To isolate and characterize triterpene compounds from the roots of Tripterygium wilfordii Hook F.
• To identify novel compounds and elucidate their structures using spectral data and physical properties.
• To report the first-time isolation of a specific triterpene compound (II) from this plant species.

Summary:

• Three triterpene compounds were successfully isolated from Tripterygium wilfordii Hook F. roots.
• A new compound, designated tripterygone (III) (3-hydroxy-25-norfriedel-3,1(10)-dien-2-one-30 oic acid), was identified.
• Two known compounds, 3 beta, 22 beta-dihydroxy-delta 12-oleanen-29-oic acid (I) and 2 alpha, 3 alpha, 24-trihydroxy-delta 12-ursene-28-oic acid (II), were also characterized.
• Compound II represents a novel isolation from this particular plant source.

Impact:

• The identification of tripterygone (III) expands the known chemical diversity of Tripterygium wilfordii.
• This research contributes to the phytochemical understanding of Tripterygium wilfordii, potentially informing future pharmacological studies.
• The isolation of compound II provides new insights into the phytochemistry of this species and may lead to further investigations of its properties.