[Two new pyranonaphthoquinones from Mansoa alliacea]
Jing Luo1, Zhen-Long Wu1, Xiao-Jun Huang1
1Center for Bioactive Natural Molecules and Innovative Drugs Research,College of Pharmacy,Jinan University Guangzhou 510632,China Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drugs Research,Jinan University Guangzhou 510632,China.
Summary
Two new compounds, mansonin A and mansonin B, were identified in garlic vine (Mansoa alliacea). This research advances understanding of the phytochemical constituents in this popular folk medicine.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
- Ethnobotany
Background:
- Mansoa alliacea, or garlic vine, is a South American plant used in folk medicine.
- Its phytochemical constituents are not fully understood despite its medicinal popularity.
Purpose of the Study:
- To isolate and characterize novel compounds from Mansoa alliacea leaves and twigs.
- To contribute to the elucidation of the plant's chemical profile.
Main Methods:
- Extraction using 95% ethanol.
- Purification via silica gel, ODS, Sephadex LH-20 chromatography, and preparative HPLC.
- Structural determination using comprehensive spectroscopic analyses.
Main Results:
- Two new pyranonaphthoquinones were successfully isolated.
- The compounds were identified as 8,9-dimethoxy-α-lapachone (mansonin A) and 7-hydroxy-8,9-dimethoxy-α-lapachone (mansonin B).
Conclusions:
- The study successfully identified two new compounds from Mansoa alliacea.
- This expands the knowledge of garlic vine's phytochemical constituents and supports its traditional medicinal uses.
![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
