Two new triterpenoid saponins, latifoloside I (1), 3-O-a-L-rhamnopyranosyl-(1®2)-b-D-glucopyranosyl 3b, 21a, 28-trihydroxy-urs-12-ene 21-O-b-D-glucopyranoside; latifoloside J (2), 3-O-a-L-rhamnopyranosyl-(1®2)-b-D-glucopyranosyl-3b, 21a-dihydroxy-ursolic acid 21-O-b-D-glucopyranoside, along with two known compounds, latifoloside C (3) and latifoloside E (4), were isolated from the bark of Ilex latifolia THUNB. Structure assignments were established on the basis of spectroscopic data and chemical evidence.

Two saponins were isolated from the roots of Ardisia mamillata HANCE. Their structures were established on the basis of MALDI-TOFMS, 1H, 13C NMR and 2D NMR (COSY, HOHAHA, HETCOR, HMBC and ROESY) spectra, and on chemical evidence, to be ardisimamilloside A, 3-O-(a-L-rhamnopyranosyl-(14 2)-b-D-glucopyranosyl-(144)-[b-D-glucopyranosyl-(142)]-a-L-arabinopyranosyl)-3b, 16a, 28a-trihydroxy-13b, 28-epoxy-oleanan-30-al; and ardisimamilloside B, 3-O-(a-L-rhamnopyranosyl-(142)-b-D-glucopyranosyl-(144)-[b-D-glucopyranosyl-(142)]-a-L-arabinopyranosyl)-3b-hydroxy-13b, 28-epoxy-oleanan-16-oxo-30-al. 7 2000 Elsevier Science Ltd. All rights reserved.

Four new triterpenoid saponins, ardisimamilloside C (1), 3-O-(a-L-rhamnopyranosyl-(1®2)-b-D-glucopyranosyl-(1®4)-[b-D-glucopyranosyl-(1®2)]-a-L-arabinopyranosyl)-3b, 16a, 28, 30-tetrahydroxy-olean-12-en, ardisimamilloside D (2), 3-O-(a-L-rhamnopyranosyl-(1®2)-b-D-glucopyranosyl-(1®4)-[b-D-glucopyranosyl-(1®2)]-a-L-arabinopyranosyl)-3b, 15a, 28, 30-tetrahydroxy-olean-12-en, ardisimamilloside E (3), 3-O-(a-L-rhamnopyranosyl-(1®2)-b-D-glucopyranosyl-(1®4)-[b-D-glucopyranosyl-(1®2)]-a-L-arabinopyranosyl)-13b, 28-epoxy-3b, 16a, 29-oleananetriol, and ardisimamilloside F (4), 3-O-(a-L-rhamnopyranosyl-(1®2)-b-D-glucopyranosyl-(1®4)-[b-D-glucopyranosyl-(1®2)]-a-L-arabinopyranosyl1-3b, 16a-dihydroxy-13b, 28-epoxy-oleanan-30-oic acid were isolated from the roots of Ardisia mamillata HANCE. Structure assignments were established on the basis of highresolution (HR)-FAB-MS, 1H-, 13C-, and two-dimensional (2D)-NMR spectra, and on the chemical evidence.

Two new aryltetralin-type lignans, isopodophyllotoxin 79-O-b-D-glucopyranosyl-(1®6)-b-D-glucopyranoside (1) and 4-demethyl-picropodophyllotoxin 79-O-b-D-glucopyranoside (2), along with eight known podophyllotoxin derivatives: 4-demethyl-podophyllotoxin 79-O-b-D-glucopyranoside (3), podophyllotoxin 79-O-b-D-glucopyranoside (4), deoxypodophyllotoxin (5), picropodophyllotoxin (6), podophyllotoxin (7), 4-demethyl-picropodophyllotoxin (8), 4-demethyl-podophyllotoxin (9), and 4-demethyl-deoxypodophyllotoxin (10), were isolated from the roots and rhizomes of Sinopodophyllum emodi (WALL.) YING (Berberidaceae). Their structures were identified based on NMR spectral data and chemical evidence.