Phenylpropanoid glycosides chemical structures

We have been interested in the toxic constituents of Illicium plants (Illiciaceae), and have reported on the isolation and structural elucidation of a series of sesquiterpenes possessing unique framework from these plants in Japan and China [1], As a continuous work on the chemical studies on the Illicium plants, we investigated the constituents of the bark of non-toxic Illicium difengpi K. I. B. et K. I. M., which was used as antiarthritic agent in China, and those of the fresh fruits of toxic Illicium anisatum L.. This paper deals with the isolation and structural elucidation of five new phenylpropanoid glycosides from the above plants. 

Abstract—Two glycerol phenylpropanoid glucosides 1, 2 and a glycoside of 2-hydroxyphenylpropanoid 3 were isolated from the barks of Illicium difengpi K. I. B. et K. I. M. (Illiciaceae). Compounds 4 and S, the analogous compounds of 3, were obtained from the fresh fruits of 1. anisatum L.. The structures of these compounds were elucidated on the basis of spectral and chemical evidence. ... 

---