A concise and stereoselective synthesis of the brassinolide and related compounds’ side chains |
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| Authors: | Lizeng PengYulin Li WeidongZ Li |
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| Institution: | National Laboratory of Applied Organic Chemistry, Institute of Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China |
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| Abstract: | A stereoselective synthesis of brassinolide, which involves construction of the side chain by highly stereoselective aldol reaction of 20S-6β-methoxy-3α,5-cyclo-5α-pregnane-20-carboxadehyde 5 with the anion of α-silyloxy ketone 6 is described. |
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