A short enantioselective synthesis of 3-epi-jaspine B and (+)-oxybiotin via an intramolecular tandem desilylation oxa-Michael addition strategy?
RSC Advances Pub Date: 2014-09-26 DOI: 10.1039/C4RA08698H
Abstract
A new synthesis of cytotoxic anhydrophytosphingosine 3-epi-jaspine B (34.7% overall yield; 97% ee) and (+)-oxybiotin (21.2% overall yield; 97% ee), bioactive oxygen analogue of biotin, is described starting from commercially available cis-2-butene-1,4-diol. The key reactions employed in the synthesis include Sharpless asymmetric epoxidation and a novel tandem desilylation oxa-Michael addition reaction strategy to construct a tetrahydrofuran core (dr >99%).
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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