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Dehydrocostus lactone

Dehydrocostus lactone Saussurea lappa (castus, mu xiang)... [Pg.267]

Dehydrocostus lactone Laurus nobilis (bay leaf, laurel) Ethanol absorption inhibited... [Pg.570]

Methylenation. In a synthesis of the two guaianolide sesquiterpenes dehydrocostus lactone (4) and estafiatin (6), usual methods for methylenation of the ketone group of 2 resulted only in p-elimination. However, use of the anion of 1 effected the desired reaction, albeit in modest (15%) yield. [Pg.534]

Three of the materials are terpenoids dehydrocostus lactone, dihy-dropyrocurzerenone and andrographolide. The positions of the... [Pg.369]

The S. A-E are components of the dried, Chinese Saussurea root (Saussurea costus, syn. 5. lappa) which is used in Chinese and Japanese traditional medicine for stomach complaints. S. A, C20H29NO4, Mr 347.45, mp, 115-117°C, [a]i3 +36.7° (CH3OH), corresponds to the Michael adduct from costunolide and proline S. B and C represent the amino acid conjugates of proline and asparagine, respectively, with the corresponding a, 8-unsaturated dehydrocostus lactone. In animal experiments, S. A exhibits a pronounced protective effect against stress-induced stomach ulcers. [Pg.573]

Sesquiterpene lactone isolated from the Compositae plant Saussurea lappa. Costunolide is present in the plant together with dehydrocostus lactone... [Pg.1205]

Dehydrocostus lactone (249), inhibitors of nitric oxide synthases and TNF-a, isolated from Saussurea radix, was incubated with C. echinulata to afford (+) lla,13 diltydrodel drocostuslactone (250a). The epoxide (251) and a Cll reduced compound (250) were obtained by the aforementioned microorganisms (Galal, 2001). [Pg.950]

Joel DM, Chaudhuri SK, Plakhine D, Ziadna H, Steffens JC (2011) Dehydrocostus lactone is exuded from sunflower roots and stimulates germinatirai of the root parasite Orobanche cumana. Phytochemistry 72 624-634. doi 10.1016/j-phytochem.2011.01.037... [Pg.3602]

See other pages where Dehydrocostus lactone is mentioned: [Pg.56]    [Pg.43]    [Pg.542]    [Pg.158]    [Pg.89]    [Pg.430]    [Pg.430]    [Pg.275]    [Pg.689]    [Pg.173]    [Pg.173]    [Pg.173]    [Pg.173]    [Pg.89]    [Pg.911]    [Pg.911]    [Pg.297]    [Pg.1206]    [Pg.1263]    [Pg.1273]    [Pg.731]    [Pg.230]    [Pg.231]    [Pg.911]   
See also in sourсe #XX -- [ Pg.158 ]

See also in sourсe #XX -- [ Pg.89 ]

See also in sourсe #XX -- [ Pg.534 ]

See also in sourсe #XX -- [ Pg.534 ]

See also in sourсe #XX -- [ Pg.89 ]

See also in sourсe #XX -- [ Pg.29 , Pg.89 , Pg.556 , Pg.559 ]

See also in sourсe #XX -- [ Pg.297 ]

See also in sourсe #XX -- [ Pg.731 ]



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