cephalotaxus harringtonia/protivnetno

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Isolation and identification of two new compounds from the twigs and leaves of Cephalotaxus fortunei.

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Prijava / prijava

Two new compounds, namely 5-hydroxy-7-methoxy-6-methylchromone (1), and sesquiterpene X (6), together with 21 known compounds were isolated from the twigs and leaves of Cephalotaxus fortunei Hook. f. The structures of 1-23 were elucidated on the basis of spectroscopic analysis (1D/2D NMR, HR-ESI-MS

Diterpenoids and Flavonoids from the Twigs of Cephalotaxus fortunei var. alpina.

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Prijava / prijava

Three new diterpenoids (a cephalotane, an abietane and a 9(10→20)-abeo-abietane) and one new flavonoid, together with 11 known compounds, were isolated from the twigs of Cephalotaxus fortunei var. alpina. The new compounds were identified by comprehensive spectroscopic (including 1D and 2D-NMR and

Bioactive norditerpenoids from Cephalotaxus fortunei var. alpina and C. lanceolata.

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Prijava / prijava

Twenty-eight naturally occurring Cephalotaxus tropone analogues, including 19 previously undescribed ones, were identified from Cephalotaxus fortunei Hook. var. alpina H. L. Li and C. lanceolata K. M. Feng. The presence of the C20 cephinoids A-E revealed that these tropones were assigned to the

Isotryptoquivaline F, a new quinazolinone derivative with anti TNF-α activity from Aspergillus sp. CM9a.

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Prijava / prijava

Isotryptoquivaline F (1) was isolated from Aspergillus sp. CM9a, an endophytic fungus of Cephalotaxus mannii. The structure was elucidated by extensively 1D and 2D NMR and HR ESI MS spectroscopy. It has good TNF-α antagonistic effect, and can be used for anti-inflammatory drugs or other bioactive

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Herbal & Natural Medicine

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