CHEMICAL STUDIES ON A CHINESE TRADITIONAL DRUG FINGERED CITRON (CITRUS MEDICA L. VAR SARCODACTYLIS (NOOT.) SWINGLE)
HE Hai-Yin and LING Luo-Qing(Department of Pharmacy, Shanghai College of Traditional Medicine)
Two new natural products, 3, 5, 6-trihydroxy-4′, 7-dimethoxyflavone and 3, 5, 6-trihydroxy-3′, 4′, 7-trimethoxyflavone, were isolated from dried fingered citron. The elucidation of their structures was based on spectroscopic data and chemical facts.