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Total Synthesis of Everninomicin 13,384-1-Part 1: Synthesis of the A(1)B(A)C Fragment

Total Synthesis of Everninomicin 13,384-1-Part 1: Synthesis of the A(1)B(A)C Fragment

Angewandte Chemie 38(22): 3334-3339

The powerful antibiotic everninomicin 13,384-1 (1, Ziracin) has been prepared for the first time through a total synthesis. The 1-->1'-disaccharide and the two orthoesters of this target molecule were introduced by new methodologies using a tin acetal and 1,2-phenylseleno migrations. The reaction sequence also relies on stereoselective glycosidations and subtle manipulations of protecting groups. In addition to the introduction of new synthetic methodologies, this total synthesis should allow the preparation of combinatorial libraries of semisynthetic analogues of this highly promising antibiotic for biological screening purposes.

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Accession: 047800970

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PMID: 10602188

DOI: 10.1002/(sici)1521-3773(19991115)38:22<3334::aid-anie3334>3.0.co;2-h

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