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61.
Sawsan El-Masry Fikria A. Darwish Amina Abou-Donia Mohamed A. Abou-Karam Michael Grenz 《Phytochemistry》1985,24(5):999-1001
The investigation of the aerial parts of Centaurea glomerata afforded four new sesquiterpene lactones of the germacradienolide type and the lignan lactone arctigenin. Their structures were elucidated by spectroscopic methods. 相似文献
62.
Bullatantriol has been isolated from Annona bullata. Its constitution and relative configuration have been established by X-ray analysis. Its absolute configuration has been assigned by chiroptical investigation of the corresponding 7-ketone. 相似文献
63.
G.M. Massanet I.González Collado F.A. Macías F.Rodríguez Luis C. Vergara 《Phytochemistry》1984,23(4):912-913
Integrifolin, the major constituent of Andryala integrifolia, has been isolated and characterized as 3β,8β-dihydroxy-4(15),10(14),11(13)-trien-(1αH), (5αH) guaian-6,12-olide (8-epi-desacylcynaropicrin). 相似文献
64.
Ferdinand Bohlmann Christa Zdero Robert M. King Harold Robinson 《Phytochemistry》1984,23(7):1509-1511
A reinvestigation of the aerial parts of Conocliniopsis prasiifolia afforded two furoheliangolides, conoprasiolide-9-O,5′-O-diacetate and 相似文献
65.
Ferdinand Bohlmann Kazuyasu Umemoto Jasmin Jakupovic Robert M. King Harold Robinson 《Phytochemistry》1984,23(8):1669-1672
The investigation of two Ferreyanthus species afforded seven germacranolides which have not been isolated previously. Two derivatives of linalol were also present. The structures were elucidated by spectroscopic methods. Chemotaxonomic relationships are briefly discussed. 相似文献
66.
67.
Nezhun Gören Ayhan Ulubelen Jasmin Jakupovic Ferdinand Bohlmann Michael Grenz 《Phytochemistry》1984,23(10):2281-2284
In addition to known compounds an investigation of the fruits of Smyrnium rotundifolium afforded four new germacrane derivatives, all closely related to glechomanolide, one being a secogermacrane anhydride. The new compounds were 8,9-epoxy-8,9-secoglechomanolide, 1β,10α-epoxy-4-methoxy-8-hydroxyglechomanolide and 8-oxo-8,9-secoglechomanolide. The structures were assigned by spectral methods as well as by some chemical reactions. 相似文献
68.
Reinvestigation of the aerial parts of Pluchea dioscoridis afforded, in addition to known compounds, five new eudesmanolides and a new thiophene derivative. The stereochemistry of one of the eudesmanolides isolated previously has been corrected. The structures were elucidated by spectroscopic methods. 相似文献
69.
70.