Isolation and Structure Elucidation of Cerebrosides from Euphorbia Platyphyllos L.

Constituents of Euphorbiaceae, 13. Comm. [1] Isolation and Structure Elucidation of Five Cerebrosides from Euphorbia characias L

H. Wagner, O. Seligmann Institut für Pharmazeutische Biologie der Universität München, Karlstraße 29, D-80330 München Z. Naturforsch. 49 b, 135-140 (1994); received August 30,1993 Euphorbiaceae, Cerebrosides, Structure Five cerebrosides B-l -B-4 were isolated from the fraction B, obtained from the latex of Euphorbia characias L. On the basis of spectral evidences and chemical reactions they wer...

Structure elucidation and chemistry of novel diterpenoids from Euphorbia plants of Iran

Plants of the genus Euphorbia have been investigated for different bioactive natural products. I have isolated several new and bioactive diterpenoids from different species of Euphorbia of Iran with myrsinane type skeleton. The structure of the compounds was determined using high resolution mass spectroscopy, 1 D and 2 D NMR spectral data. The stereochemistry of the diterpenoids was determined ...

Structure elucidation and chemistry of novel diterpenoids from Euphorbia plants of Iran

Plants of the genus Euphorbia have been investigated for different bioactive natural products. I have isolated several new and bioactive diterpenoids from different species of Euphorbia of Iran with myrsinane type skeleton. The structure of the compounds was determined using high resolution mass spectroscopy, 1 D and 2 D NMR spectral data. The stereochemistry of the diterpenoids was determined ...

Carotenoids from guava (Psidium guajava l.): isolation and structure elucidation.

Sixteen carotenoids were isolated from the flesh of Brazilian red guavas (Psidium guajava L.). Their structures were established by means of UV-visible, 400 and 500 MHz (1)H NMR, 120 and 125 MHz (13)C NMR, mass, and circular dichroism spectra. The carotenoids were identified as phytofluene, (all-E)-, (9Z)-, (13Z)-, and (15Z)-beta-carotene, (all-E)-gamma-carotene, (all-E)-, (9Z)-, (13Z)-, and (1...

Isolation and Structure Elucidation of Diterpenes from Euphorbia pannonica, E. esula and E. falcata