Three new triterpenoid saponins, hylonosides III-V (1-3) have been isolated, along with three known oleanolic acid saponins (4-6), from the methanol extract of leaves of Ilex hylonoma. The structures were elucidated using a combination of homo- and hetero-nuclear 2D NMR techniques (COSY, TOCSY,
Two new triterpenoid saponins, hylonosides I-II (1,2) have been isolated along with one known flavonoid glycoside (3) from the methanol extract of leaves of Ilex hylonoma. The structures were elucidated by ID and 2D NMR experiments, including 1H-1H COSY, TOCSY, NOESY, HMQC, and HMBC methods. Two new