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Pseudoguaianolides from the flowers of Parthenium hysterophorus |
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| Authors: | Ramesh C Ravindranath N Das Biswanath Prabhakar A Bharatam Jagadeesh Ravikumar K Kashinatham A McMorris T C |
| Institution: | Indian Institute of Chemical Technology, Hyderabad 500 007, India. |
| Abstract: | Chemical investigation on the flowers of Parthenium hysterophorus has resulted in the isolation of four new pseudoguaianolides, hysterones A-D along with the known compounds, parthenin, coronopilin, 2beta-hydroxycoronopilin and tetraneurin-A. The structures of the new compounds were established by interpretation of their spectral (1D and 2D NMR) data. The X-ray crystallographic analysis of hysterones A and C was also carried out. |
| Keywords: | Pathenium hysterophorus Compositae Pseudoguaianolides Hysterones |
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