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Synthetic studies of the 18-membered antitumor macrolide, tedanolide. 3. Stereocontrolled synthesis of the C1-C12 part via a synthesis of the C1-C7 fragment by a mismatched but efficient sharpless dihydroxylation and its coupling with the C8-C11 fragment



Synthetic studies of the 18-membered antitumor macrolide, tedanolide. 3. Stereocontrolled synthesis of the C1-C12 part via a synthesis of the C1-C7 fragment by a mismatched but efficient sharpless dihydroxylation and its coupling with the C8-C11 fragment



Chemical and Pharmaceutical Bulletin 47(3): 308-321



The C1-C12 part (4) of tedanolide (1) was synthesized starting from methyl (R)-3-hydroxy-2-methylpropionate (11a) via a coupling between the C1-C7 aldehyde (6) and the C8-C11 iodoalkene (7a). For a synthesis of 6, a mismatched but highly efficient Sharpless dihydroxylation of the alpha, beta-unsaturated ester (15) with AD-mix-alpha was successfully applied. Compound 7a was synthesized using hydrozirconation to the alkyne (32).

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Accession: 011446295

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PMID: 10212381

DOI: 10.1248/cpb.47.308


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