A novel compound isolated from the peels of Citrus changshan-huyou Y.B.Chang

Five compounds,huyouyisu(1),vomifoliol(2),isoferulic acid(3),1,2,3-trihydroxy-phenol(4) and p-hydroxy-phenol(5),were isolated from the peels of Citrus changshan-huyou Y.B.Chang for the first time by utilizing repeated column chromatography on silica gel.Among them,huyouyisu(1) is a new compound.The structure was elucidated by using 1D and 2D spectra.