A novel flavanol bearing phenylpropionic acid moiety at C-4 through a C-C bonding,named brainin A（1）,was isolated from the rhizomes of Brainea insignis.Its structure was elucidated on the basis of spectral data including 2D NMR and HR-ESI-MS.
Ming Hui YangLe CaiZhi Gang TaiXue Qiong YangZhong Tao Ding
