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  • (3aR,4aR,5R,8S,8aR,8bR)-8a-Benzyloxy-5-methoxy-2,2,6-trimethyl-8-trityloxymethyl-3a,4a,5,8,8a,8b-hexahydro-benzo[4,5]furo[2,3-d][1,3]dioxole

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