Vahadenia laurentii

Irehdiamine F has been isolated from the roots of Vahadenia laurentii its structure (11) has been settled by X-ray diffraction analysis of its hydrochloride (J. Lamotte et at., Acta Cryst., 1977, B33, 2392). 20-Epi-irehdiamine I (12), found in seeds of Funtumia elastioa, has been formulated on the basis of its nmr and mass spectra its structure has been corroborated by a synthesis from progesterone by an unexceptional pathway (M. D. L. Tolela and P. Foche, Planta Med., 1979, 35, 48). 

The alkaloids conkurchine, conessine, conessidine, holarrhine, and kurchine have been isolated from Wrightia tomentosa Irehdiamine F (la) has been isolated from roots of Vahadenia laurentii in the first investigation of this species the crystal and molecular structures of the hydrochloride of this base were investigated by single-crystal AT-ray diffraction methods/ A study has been reported on the nature of the binding of irehdiamine A (lb), and of the 5,6-dihydro-derivative of the latter base, to double-helical DNA/... 

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See also in sourсe #XX -- [ ]

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