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Meliglabrin, A New Flavonol Derivative from the leaves of Melicope glabra (Blume) T.G. Hartley
Ratih Dewi Saputri,Tjitjik Srie Tjahjandarie,Mulyadi Tanjung 한국생약학회 2018 Natural Product Sciences Vol.24 No.3
A new flavonol derivative, meliglabrin (1) along with three known flavonols, ternatin (2), meliternatin (3), and 5,4'-dihydroxy-3,7,3'-trimethoxyflavon (4) were isolated from the leaves of Melicope glabra (Blume) T.G. Hartley. Their structures were determined using extensive spectroscopic methods, including UV, IR, HRESIMS, 1D and 2D NMR. Compounds 1 - 4 were evaluated for their cytotoxicity against murine leukemia P-388 cells, compound 4 showed moderate activity.
Melixyloidin, A New Acridone Alkaloid from Melicope xanthoxyloides Leaves
Ratih Dewi Saputri,Mulyadi Tanjung,Tjitjik Srie Tjahjandarie 한국생약학회 2021 Natural Product Sciences Vol.27 No.3
A new acridone alkaloid, melixyloidin (1), and two known alkaloids (2-3) were isolated from Melicope xanthoxyloides (F. Muell) T.G. Hartley leaves. The structure of melixyloidin were elucidated using NMR spectra and high-resolution ESIMS data. Acridone alkaloids 1-3 were evaluated against MCF-7 and HeLa cells. 1,3,4-Trimethoxy-10-methylacridin-9-one (2) showed potent cytotoxic activity against MCF-7 cells with an IC50 value of 5.31 μM.
Flavestin K, An Isoprenylated Stilbene from the Leaves of Macaranga recurvata Gage
Tjitjik Srie Tjahjandarie,Mulyadi Tanjung,Ratih Dewi Saputri,Anton Permadi,Muhammad Fajar Aldin,Eva Marliana,Anton Permadi 한국생약학회 2019 Natural Product Sciences Vol.25 No.3
A new isoprenylated stilbene, flavestinK (1) together with two known isoprenylated stilbenes, flavestin B (2), flavestin G (3), and two isoprenilated flavanones, 4-O-methyl-8-isoprenylnaringenin (4) and 8-isoprenyl-5,7-dihydroxyflavanone (5) were isolated from the leaves of Macaranga recurvata Gage. All of the structures have been determined based on HRESIMS, 1D and 2D NMR spectral data. All of the isolated compounds were evaluated for their cytotoxicity against three human cancer cells (HeLa, T47D and WiDr). Compound 1 showed higher activity than doxorubicin against HeLa cells with IC50 value of 13.1 μg/mL.
A New Cinnamyl Acid Derivative from the Roots of Willughbeia coriacea Wall.
Mulyadi Tanjung,Tjitjik Sri Tjahjandarie,Ratih Dewi Saputri,Andre Harsono,Muhammad Fajar Aldin 한국생약학회 2020 Natural Product Sciences Vol.26 No.1
A new cinnamyl acid derivative, willughbein A (1) along with pinoresinol (2), alyterinate A (3), and scopoletin (4), were isolated from the roots of Willughbeia coriacea Wall. The structure of 1 has been determined based on HRESIMS, 1D, and 2D NMR spectral data. All of the isolates were evaluated for their cytotoxicity against three human cancer cells (HeLa, T47D, MCF-7, and P-388). Compound 3 showed moderate activity against P-388 cells with an IC50 value of 3.04 μg/mL.
Acronyculatin P, A New Isoprenylated Acetophenone from the Stem Bark of Acronychia pedunculata
Mulyadi Tanjung,Intan Nurmalasari,Aisyah Kanti Wilujeng,Ratih Dewi Saputri,Fida Rachmadiarti,Tjitjik Srie Tjahjandarie 한국생약학회 2018 Natural Product Sciences Vol.24 No.4
A new isoprenylated acetophenone, acronyculatin P (1) as well as two known compounds, 3',5'-diisoprenyl-2',4'-dihydroxy-6'-methoxyphenylethanone (2) and 3'-isoprenyl-2',4',6'-trihydroxyphenylethanone (3) were isolated from the stem bark of Acronychia pedunculata (L.) Miq. The structures were determined by HRESIMS, 1D and 2D NMR. The inhibitory activity of the isoprenylated acetophenone derivatives against murine leukemia P-388 cells showed compound 1 moderate activity with IC50 15.42 mM.