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pachysandra terminalis/alkaloid
Povezava se shrani v odložišče
Stran 1 iz 22 rezultatov
Alkaloids from Pachysandra terminalis inhibit breast cancer invasion and have potential for development as antimetastasis therapeutic agents.
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The aim of the present study was to identify potentially useful natural compounds for the development of novel therapeutic agents to inhibit metastasis. A phytochemical investigation of Pachysandra terminalis resulted in the isolation of seven new pregnane alkaloids, terminamines A-G (1-7), and
Activity-guided isolation of steroidal alkaloid antiestrogen-binding site inhibitors from Pachysandra procumbens.
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Four novel steroidal alkaloids, (+)-(20S)-20-(dimethylamino)-3-(3'alpha-isopropyl)-lactam-5alpha-+ ++preg n-2-en-4-one (1), (+)-(20S)-20-(dimethylamino)-16alpha-hydroxy-3-(3'alpha-isopropyl) -la ctam-5alpha-pregn-2-en-4-one (2), (+)-(20S)-3-(benzoylamino)-20-(dimethylamino)-5alpha-pregn-2-en-++
A novel pregnane-type alkaloid from Pachysandra terminalis inhibits methicillin-resistant Staphylococcus aureus in vitro and in vivo.
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A new kind of pregnane-type alkaloid, 20α-dimethylamino-3β-senecioylamino-16β-hydroxy-pregn-5-ene (K-6), was isolated from Pachysandra terminalis Sieb. et Zucc., and its antibacterial activity against MRSA and MRSE was evaluated. We found that K-6 showed antibacterial effects against MRSA and MRSE
Cytotoxic alkaloids of Pachysandra terminalis.
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Four steroidal alkaloids, epipachysamines B (1) and E (2), pachystermine A (3) and pachysamine E (4), were isolated as cytotoxic principles from the MeOH extract of the stems of Pachysandra terminalis SIEB. et ZUCC. (Buxaceae). These alkaloids showed cytotoxic activity against P388 and P388/ADR
Terminamines K-S, Antimetastatic Pregnane Alkaloids from the Whole Herb of Pachysandra terminalis.
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Nine new pregnane alkaloids (1-9), together with eight known alkaloids (10-17), were isolated from the whole herb of Pachysandra terminalis. Their structures were elucidated on the basis of spectroscopic analyses. In addition, the isolates were examined for their ability to inhibit the migration of
Two new pregnane alkaloids from Pachysandra terminalis Sieb. et Zucc.
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Two new pregnane alkaloids, (20S)-20α-cinnamoylamino-3β-dimethylamino-5-en-pregnane (1) and (20S)-20α-cinnamoylamino-3β-dimethylamino-pregnane (2), and four known alkaloids
Effects on gastric acid secretion of a steroidal alkaloid, epipachysamine-A, extracted from Pachysandra terminalis Sieb. et Zucc.
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Effect of a steroidal alkaloid, epipachysamine-A, extracted from Pachysandra terminalis Sieb. et Zucc. on gastric acid secretion was studied in rats. Epipachysamine-A prevented 2-deoxy-D-glucose- or thyrotropin-releasing hormone-stimulated gastric acid secretion in anesthetized rats. However, the
Pregnane alkaloids from Pachysandra axillaris.
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Nine new pregnane alkaloids, pachysamines J-R (1-9), together with seven known ones, were isolated from Pachysandra axillaris. The chemical structures of the new alkaloids were elucidated by spectroscopic methods. All the compounds were evaluated for their inhibitory activities against HL-60,
Antitumor metastasis pregnane alkaloids from Pachysandra terminalis.
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Three new pregnane alkaloids, named terminamines H-J (1-3), together with two known alkaloids (4 and 5), were isolated from the ethanol extract of Pachysandra terminalis. The structures of isolated compounds were elucidated by spectroscopic methods, including (1)H and (13)C NMR, 2D NMR, and
Pachysandra alkaloids. IX. Structure of pachysantermine-A, a novel intramolecular ester alkaloid.
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Pachysandra alkaloids. VII. Spectra of Pachysandra alkaloids.
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Pachysandra alkaloids. V. Structure of epipachysamine-A, -B, -C, -D, -E, and -F.
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Pachysandra alkaloids. IV. Structure of pachysamine-A and -B.
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Pachysandra alkaloids. VI. Structure of terminaline.
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Pachysandra alkaloids. 8. Structures of pachystermine-A and -B, novel type alkaloids having a beta-lactam ring.
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