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A facile synthesis of the 20-hydroxyecdysone side chain via a dihydrofuran derivative |
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| Authors: | Udo Hedtmann Peter Welzel |
| Affiliation: | Fakultät for Chemie der Ruhr-Universität Postfach 102148, D-4630 Bochum Germany |
| Abstract: | Key steps of a new synthesis of the 20-hydroxyecdysone side chain are (i) addition of 2 to 20-ketopregnanes and (ii) the stereoselective reduction of the 22-keto group after OH group protection. |
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