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1. J. Amer. Chem. Soc. 1970. 92: 5006-5008.
Spry D. O.
Conversion of penicillin to cephalosporin via a double sulfoxide rearrangement.
- DOI:
http://dx.doi.org/10.1021/ja00719a054
Spry D. O.
Oxidation of penicillin and dihydrocephalosporin derivatives with ozone.
- DOI:
http://dx.doi.org/10.1021/jo00970a027