Add time:08/13/2019         Source:sciencedirect.com

A concise synthesis of the β-lactone esterase inhibitor valilactone (1) is reported. This synthesis employs the stereoselctive preparation of a π-allyltricarbonyliron lactone complex (7) that on oxidation with ceric ammonium nitrate, affords an appropriately substituted β-lactone (9) which was transformed to (1).

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