Scyphiphin C, a new iridoid from Scyphiphora hydrophyllacea

Area of Science:

• Phytochemistry
• Natural Products Chemistry
• Organic Chemistry

Background:

• Scyphiphora hydrophyllacea is a plant species with potential medicinal properties.
• Iridoids are a class of natural compounds known for diverse biological activities.
• Previous phytochemical studies on S. hydrophyllacea may not be exhaustive.

Purpose of the Study:

• To isolate and characterize chemical constituents from the ethanol extract of Scyphiphora hydrophyllacea.
• To identify novel compounds and known compounds from the plant's aerial parts.
• To elucidate the structures of isolated compounds using spectroscopic methods.

Main Methods:

• Extraction of aerial parts of Scyphiphora hydrophyllacea using ethanol.
• Isolation of compounds using chromatographic techniques.
• Structure elucidation through physical and spectral data analysis (e.g., NMR, MS).

Main Results:

• Isolation of a new iridoid, designated as scyphiphin C (1).
• Isolation of a known iridoid glycoside, shanzhiside methyl ester (2).
• Confirmation of structures based on comprehensive physical and spectral analysis.

Conclusions:

• The chemical investigation successfully identified a new iridoid compound, scyphiphin C.
• Shanzhiside methyl ester was also isolated, contributing to the known phytochemical profile of the species.
• These findings expand the knowledge of iridoid diversity in Scyphiphora hydrophyllacea.