Yoshikawa M, Uchida E, Chatani N, Murakami N, Yamahara J
Kyoto Pharmaceutical University, Kyoto, Japan.
Chem Pharm Bull (Tokyo). 1992 Nov;40(11):3121-3. doi: 10.1248/cpb.40.3121.
Six new antiallergic and antimicrobial principles, thunberginols A, B, C, D, E, and F, were isolated from Hydrangeae Dulcis Folium, the fermented and dried leaves of Hydrangea macrophylla SERINGE var. thunbergii MAKINO. The chemical structures of thunberginols A, B, and F have been determined on the basis of chemical and physiocochemical evidence. Thunberginols A, B, and F showed more potent antiallergic activity than phyllodulcin, hydrangenol, and AA-861 in the in vitro test using the Schults-Dale reaction in sensitized guinea pig bronchial muscle. Thunberginols A, B, and F also exhibited antimicrobial activity against oral bacteria.
