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13.029  Articles
1 of 1.304 pages  |  10  records  |  more records»
Talent in the field of information technology is much needed. However, studying in the field of information technology requires a sizable fee. Online courses are a cost-effective option for learning. Online course sites like Udemy provide and sell hundred... see more

Two quercetin derivatives, pachypodol (1)  and ayanin (2) were isolated from  the stem bark of Melicope quercifolia (B.S. William) Ridl. Their structures were determined based on spectroscopic data such as UV, IR, MS and NMR. Compounds 1–2 were ... see more

Two furoquinoline alkaloids, leptanoine C (1) and haplopine-3,3´-dimethylallyl ether (2) were isolated from the leaves of Melicope moluccana. The chemical structure of both compounds was determined based on spectroscopic data, including UV, IR, HR-ESI-MS,... see more

Dua senyawa alkaloid furokuinolin, diktammin (1) dan skimmianin (2) telah berhasil diisolasi dari kulit batang Zanthoxylum acanthopodium DC. Penentuan struktur kedua senyawa alkaloid ditetapkan berdasarkan analisis spektrum UV, IR, MS, 1D dan 2D NMR. Uji ... see more

One furokuinoline alkaloid, evolitrine (1), and one cinnamate acid, trans 3-methyl-4-geranil caffeic acid (2) were isolated from  the stem bark of Melicope hookeri.  The structures of both compounds were determined  based on spectroscopic d... see more

Dua senyawa alkaloid kuinolin terisoprenilasi yakni N-metilflindersin (1) dan flindersin (2) telah diisolasi dari daun Melicope denhamii.  Struktur kedua senyawa ditetapkan berdasarkan analisis spektroskopi UV, IR, MS dan NMR. Uji aktivitas antikanke... see more

Five O-geranylated coumarins namely as auraptene (1), 7-((2’E,6’E)-5’-hydroxy-3’,7’-dimethylocta-2’,6’-dienyloxy)coumarin (2), 7-(2’E,5’E)-7’-hydroxy-3’,7’-dimethylocta-2’,5’-dienyloxy) coumarin (3), 6-methoxy-7-oxygeranylcouma... see more

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Two isoprenylated flavanones  namely as lonchocarpol A (1)  dan lupinifolin (2) were isolated from  the stem bark of Limonia accidissima L. Erythrina fusca L. Their structures were determined  based on spectroscopic data such as UV, IR... see more

1 of 1.304 pages  |  10  records  |  more records»