Results 161 to 170 of about 1,758 (205)

Seasonal variation of diarylheptanoids in Zostera marina (Zosteraceae) from the Baltic Sea, impact of drying on diarylheptanoids and phenolics, and first report of 3-keto-steroids

Biochemical Systematics and Ecology, 2022
Seven diarylheptanoids and three 3-keto-steroids were detected in the acetone extract obtained from Zostera marina L. collected at the coast of the German Baltic Sea.
Alfonso Mangoni, Christian Zidorn
exaly   +2 more sources

Diarylheptanoids from Alnus incana

Chemistry of Natural Compounds
Thirteen known (1–13) and a previously undescribed diarylheptanoid 14, named cis-oregonoyl A, were isolated from Alnus incana bark using standard dry column flash silica gel chromatography followed by reversed-phase semipreparative HPLC. Structure elucidation was performed on the basis of 1H and 13C, COSY, NOESY, HSQC, and HMBC NMR experiments ...
Novaković, Miroslav, Trendafilova, Antoaneta, Jadranin, Milka, Veljić, Milan, Ljujić, Jovana, Milosavljević, Slobodan, Tešević, Vele   +6 more
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Unusual diarylheptanoid-phenylpropanoid adducts and diarylheptanoid alkaloids from Pellacalyx saccardianus

Phytochemistry Letters, 2021
Abstract Two pairs of enantiomeric diarylheptanoid-phenylpropanoid adducts bearing a cyclohexenone core, (±)-saccardianones A and B (1 and 2), an alkaloidal diarylheptanoid-phenylpropanoid adduct bearing a 4-piperidone core, (±)-saccardianine A (3), a pair of enantiomeric dimeric diarylheptanoid alkaloids bearing a tetrahydropyridine core ...
Zi-Yang Chan, Premanand Krishnan, Ling-Wei Hii, Chun-Wai Mai, Chee-Onn Leong, Yun-Yee Low, Soon-Kit Wong, Kang-Nee Ting, Kien-Thai Yong, Kuan-Hon Lim   +9 more
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Chemopreventive potential of cyclic diarylheptanoids

Bioorganic & Medicinal Chemistry, 2002
Eleven cyclic diarylheptanoids and seven related compounds were screened as potential antitumor promoters by using the in vitro short-term 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced Epstein-Barr virus early antigen (EBV-EA) activation assay. In addition, the cyclic diarylheptanoid myricanone (2) was examined for antitumor initiating activity in
Junko, Ishida, Mutsuo, Kozuka, Harukuni, Tokuda, Hoyoku, Nishino, Seiji, Nagumo, Kuo Hsiung, Lee, Masahiro, Nagai   +6 more
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Antihepatotoxic actions of gingerols and diarylheptanoids

Journal of Ethnopharmacology, 1985
The antihepatotoxic effects of gingerols, shogaols, diarylheptanoids and related analogues were assessed utilizing carbon tetrachloride- and galactosamine-induced cytotoxicity in primary cultured rat hepatocytes. Most congeners exhibited significant actions in these assay methods.
H, Hikino, Y, Kiso, N, Kato, Y, Hamada, T, Shioiri, R, Aiyama, H, Itokawa, F, Kiuchi, U, Sankawa   +8 more
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Diarylheptanoids of Centrolobium species

Phytochemistry, 1970
Abstract The heartwoods of two Centrolobium species (Leguminosae) were examined. C. robustum Mart. was found to contain piceatannol, (-)-centrolobine (VIIa), (-)-de- O -methylcentrolobine (VIIb) and (-)-centrolobol (VI). C. tomentosum Benth. was found to contain (+)-centrolobine (IXa), (+)-de- O -methylcentrolobine (IXb) and (+)-centrolobol ...
A. Aragão Craveiro, A. da Costa Prado, O.R. Gottlieb, P.C. Welerson de Albuquerque   +3 more
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Synthesis of a diarylheptanoid, (+)-centrolobine

Tetrahedron: Asymmetry, 2010
A chiron approach for the total synthesis of (+)-centrolobine has been described from the commercially available aldehyde 3 employing an acid-catalyzed stereoselective formation of tetrahydropyran ring as the key step. The desired molecule was accomplished in eight steps with 62% overall yield.
Ch. Raji Reddy, P. Phani Madhavi, S. Chandrasekhar   +2 more
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Diarylheptanoid: A privileged structure in drug discovery

Fitoterapia, 2020
Privileged structures are widely used in the process of drug design, and provide an effective template in medicinal chemistry. Diarylheptanoids are a class of structurally distinctive compounds with a wide variety of bioactivity, raising keenly interest in the past decades.
De-Juan, Sun, Ling-Juan, Zhu, Yu-Qian, Zhao, Yong-Qi, Zhen, Lan, Zhang, Cong-Cong, Lin, Li-Xia, Chen   +6 more
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Synthesis of gingerol and diarylheptanoids

Tetrahedron: Asymmetry, 2011
Abstract The synthesis of gingerol 1 and related compounds 2 – 5 along with diarylheptanoids 6 – 8 has been accomplished using a Keck allylation, Crimmins’ aldol reaction, aldehyde coupling with acetylene, and chelation controlled reductions as the key reactions.
Gowravaram Sabitha, Chitti Srinivas, Teega Rammohan Reddy, Kurra Yadagiri, Jhillu Singh Yadav   +4 more
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New Diarylheptanoids and Diarylheptanoid Glucosides from the Rhizomes of Tacca chantrieri and Their Cytotoxic Activity

Journal of Natural Products, 2002
Two new diarylheptanoids (1, 2) and seven new diarylheptanoid glucosides (3-9) were isolated from the rhizomes of Tacca chantrieri. Their structures were determined by spectroscopic analysis, including 2D NMR data, and the results of hydrolytic cleavage.
Akihito, Yokosuka, Yoshihiro, Mimaki, Hiroshi, Sakagami, Yutaka, Sashida   +3 more
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