Two new resin glycosides, batataosides I (1) and II (2), and five known compounds, friedelin (3), scopoletin (4), octadecyl caffeate (5), beta-sistosterol (6) and daucosterol (7), were isolated from the roots of Ipomoea batatas. Their structures have been determined based on the chemical and spectral data. Batataosides I and II have novel structures because the core simonic acid B was esterised...

nents, we investigated the chemical constituents of Gnetum cleistostachyum C. Y. CHENG (Gnetaceae). One new stilbenolignan named gnetucleistol F (1), four known stilbenolignans, gnetofuran A (2), lehmbachol D (3), gnetifolin F (4) and gnetumontanin C (5), together with shegansu B (6), gnetupendin B, gnetol and daucosterol were isolated from this plant. In order to confirm the structures and obt...

The present study describes the ethnobotanical, phytochemical, and toxicological evaluations of Xanthium strumarium L. growing in Bangladesh. In toxicity evaluation on rats, the methanol extract of seedlings showed mortality, while both seedling and mature plant extracts raised the serum alanine transaminase and aspartate transaminase values and produced significant abnormalities in the histopa...

Objective: In the present study, we have discussed antibacterial activity of methanolic extract Grewia tiliaefolia Vahl leaf and isolation pure phytochemicals by using column chromatography. Methods: The powdered material was extracted with methanol a soxhlet extractor compounds Evaluation determined zone inhibition disc diffusion method. Results: Three were isolated from chromatography, namely...

The traditional medicinal plants are believed to be an impotent source of phytochemicals with potential therapeutic effects, and caring for different diseases. plant Solanum surattense has active like saponins, alkaloid, phenols, solamargine, solasurine, solasonine, gum, ascorbic acid, sterols, torvoside K, L, khasianine, glycosides, flavonoids, aculeatiside A, glycoalkaloid, steroidal compound...

A new ursane-type triterpenoid, 3β-hydroxy-urs-30-p-Z-hydroxycinnamoyloxy-12-en-28-oic-acid (1), together with three known triterpenoids, 3β-hydroxy-urs-30-p-E-hydroxycinnamoyloxy-12-en-28-oic-acid (2), 2α,3β,19α-trihydroxy-urs-12-en-28-oic-acid (3), and ursolic acid (4), four known lignans, pinoresinol (5), 9α-hydroxypinoresinol (6), (+)-medioresinol (7), and (+)-kobusin (8), and two steroids,...

− In a continuing study of the fermented noni (Morinda citrifolia) juice exudates, five compounds, heptanyl 2-O-β-D-xylofuranosyl-(1 → 6)-β-D-glucopyranoside (1), n-butyl β-D-glucopyranoside (2), (1S)-(3ethenyl-phenyl)-1,2-ethanediol (3), (2S)-2-hydroxybutanedioic acid (4), and daucosterol (5) were isolated from the buthanol partition of the extract. The structures of the isolates were identifi...

Antidesma ghaesembilla is an important medicinal and food plant in many Asian countries. Ten substances could be isolated from the dichloromethane and methanol extract: sitostenone (3), daucosterol (4), chavibetol (5), asperphenamate (6), protocatechuic acid (7), vanillic acid-4-O-β-D-glucoside (8), 1-O-β-D-glucopyranosyl-3-O-methyl-phloroglucinol (9), and aristolic acid II-8-O-β-D-glucoside (1...