Merck Sharp + Dohme Corp.

Lisa Barton

David Waller

Clifton Leigh

Gregory Gazda

Zachary Minden

Provided herein is a method for the synthesis of cephalosporin antibiotic compounds comprising a palladium-catalyzed coupling reaction.

Synthesis of cephalosporin compounds

Provided herein is a method for the synthesis of cephalosporin antibiotic compounds comprising a palladium-catalyzed coupling reaction. Provided herein are methods for the synthesis of cephalosporin compounds of formula (I) employing a palladium-catalyzed alkylation reaction, as well as compositions related to the same. In an aspect, provided herein is a method for preparing a compound of formula (II), or a salt thereof, comprising the step of admixing, e.g., reacting, a compound of formula (III), or a salt thereof, with a nucleophile (Nuc) in the presence of reagents comprising: (a) a palladium source; and (b) a palladium-binding ligand, to form a compound of formula (II), or a salt thereof.

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Haverhill, MA, United States of America

Lisa Barton