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What is the molecular formula of the molecule benzyl (3aS,6S,6aS)-6-chloro-3,3-dimethoxy-3a,5,6,6a-tetrahydro-2H-furo[3,2-b]pyrrole-4-carboxylate;benzyl (3aS,6R,6aS)-3,3-dimethoxy-6-methylsulfonyloxy-3a,5,6,6a-tetrahydro-2H-furo[3,2-b]pyrrole-4-carboxylate;benzyl (3aS,6R,6aS)-6-hydroxy-3,3-dimethoxy-3a,5,6,6a-tetrahydro-2H-furo[3,2-b]pyrrole-4-carboxylate ?
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C49H64ClN3O19S
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