Chemical constituents from the fruit peels of Fortunella japonica

Chemical constituents of fruit peels of Fortunella japonica Swingle were investigated, and ten compounds were purified and isolated through various chromatographic procedures. Through NMR analysis, isolated compounds were identified as alpha-tocopherol (1), lupenone (2), beta-amyrin (3), alpha-amyrin (4), beta-sitosterol (5), beta-sitosteryl 3-O-glucopyranoside (6), kaempferide 3-O-rhamnopyranoside (7), 3',5'-di-C-beta-glucopyranosylphloretin (8), acacetin 7-O-neohesperidoside (9), and acacetin 8-C-neohesperidoside (10). Compounds 1-7 were identified for the first time by our group from fruit peels of F japonica.