Cacalia tangutica belonged to the tribe Compositae have long been used as Chinese traditional folk herbs to treat headache,dizziness,hemiplegia,rheumatism,tussis and phlegm.Resently,our continuing studies on this plant revealed the presence of diversiform sesquiterpenes from a petrol extract of the aerial parts.The seven sesquiterpenes isolated were three eremophilane sesquiterpenes (1-3) including novel one (1),one known guaianetype sesquiter-peoid (4),one alloromadendrane sesquiterpene (5) and two eudesmane sesquiterpenes (6,7) (Figure 1).
展开▼
