K. Shishido et al., DITERPENE QUINOIDES FROM TRIPTERYGIUM-WILFORDII VAR REGELII WHICH AREINTERLEUKIN-1 INHIBITORS, Phytochemistry, 35(3), 1994, pp. 731-737
Seven new quinoide-type diterpenes were isolated from the stems of Tri
pterygium wilfordii var. regelii and their structures were established
on the basis of spectroscopic and chemical evidence. The isolated com
pounds showed extremely potent inhibitory activities against interleuk
in-1 alpha and beta releases for human peripheral mononuclear cells.