Studies on the Chemical Constituents of Chloranthus henryi

From Chloranthus henryi, ten compounds were isolated and identified as 1β,8β-Dihydroxy-eudesman 4(15),7(11)-dien8α,12-olide (1), 4β,8β-dihydroxy-5α (H)- eudesm-7(11) -en-8,12-olide (2), 12-oxo-15-hydroxylabda-8(17), 13E-dien-19-oic acid (3), 12(S), 15-dihydroxy labda - 8(17),13E-dien-19-oic acid (4) , curcolonol (5), flavokawain A (6), 2 -hydroxy-4, 3 , 4 , 6 – tetramethoxychalcone (7), daucosterol (8), β-sitosterol (9) and 3,4-dihydroxybenzoic acid (10). The structures of the isolated compounds were established by means of NMR and MS analyses. These compounds were firstly isolated from this plant. Compound 1 have inhibitory activities on the release of β-glucuronidase from rat PMNs induced by PAF.