A New Synthetic Method of 3-Formylcephalosporins

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Cephalosporin 3'-bromolactones (3) were prepared in good yields via silyl ethers (2) starting from readily available cephalosporin lactones (1). Treatment of 3 with dimethyl sulfoxide yielded 3-formylcephalosporins (4), a useful intermediate for the chemical modification at the C_3-position of cephalosporins.
公益社団法人日本薬学会の論文
1980-04-25

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A New Synthetic Method of 3-Formylcephalosporins

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