A triterpenoidal saponin and sphingolipids from Pteleopsis hylodendron

A triterpenoidal saponin bellericagenin {B 3- O-[β- d-glucopyranosyl-(1 → 2)-α- d-glucopyranoside] ( 1) (Pteleopsoside)}, and two sphingolipids, hylodendroside-I ( 2), and hylodendroside-II ( 3) were isolated from the stem bark of Pteleopsis hylodendron, along with a synthetically known compound, {2α, 3β, 23-triacetoxy-19α-hydroxyolean-12-en-28-oic acid ( 4)}. From the stem bark of Pteleopsis hylodendron, a triterpenoidal saponin bellericagenin {B 3- O-[β- d-glucopyranosyl-(1 → 2) -α- d-glucopyranoside] ( 1) (Pteleopsoside)} and two sphingolipids, hylodendroside-I ( 2), and hylodendroside-II ( 3) were isolated, along with a synthetically known compound, {2α, 3β, 23-triacetoxy-19α-hydroxyolean-12-en-28-oic acid ( 4)}. Other known compounds, friedelin ( 5), β-carotene ( 6), lupeol ( 7), sitosterol ( 8), and stigmasterol ( 9), were also obtained. Their structures were deduced with the help of detailed spectroscopic studies.