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Preparation and synthetic application of partially protected brassinosteroids |
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| Authors: | Vladimir A Khripach Vladimir N Zhabinskii Galina V Ivanova Dmitrii V Tsavlovskii Bernd Schneider |
| Institution: | a Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Kuprevich str., 5/2, 220141 Minsk, Belarus b Max-Planck-Institute for Chemical Ecology, Beutenberg Campus, Hans Knöll Str. 8, D-07745 Jena, Germany |
| Abstract: | Preparation of partially protected brassinosteroids is achieved through the reaction of the source material (24-epicastasterone and 24-epibrassinolide) with diol-specific reagents (2,2-dimethoxypropane and methylboronic acid). The obtained products were shown to be useful synthetic intermediates for further preparation of minor representatives of this class of natural phytohormones (such as 3,24-diepicastasterone and 3-dehydro-24-epibrassinolide). |
| Keywords: | Brassinosteroids 24-Epicastasterone 24-Epibrassinolide Acetonides Boronic acid esters |
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