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1981-04-01
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1983-01-21
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1984-11-27
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1984-03-30
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1983-03-10
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1985-02-01
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1979-05-01
Process for the preparation of beta-lactam antibiotics
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1982-07-16
Process for the preparation of new cephem compounds
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1980-06-01
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1982-08-01
Process for the preparation of new cephem compounds
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1984-02-28
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1982-11-22
Process for the preparation of cephalosporinic antibiotics
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1982-11-26
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1981-10-01
Process for the preparation of 1-oxa-beta-lactam antibiotics
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1982-08-31
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1985-05-02
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1982-12-23
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1984-09-20
Process for the preparation of beta-lactam antibiotics
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1983-05-27
New method of making the sisomycine antibiotics
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1981-09-10
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1981-10-01
Process for the preparation of cephalosporin compounds
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1996-02-29
Process for the preparation of sin-isomers of cephalosporin antibiotics
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1984-11-28
Process for the manufacture of cephalosporin derivatives
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1982-07-30
Process for the preparation of beta-lactam antibiotics
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1983-05-19
Improved process for the preparation of cephamycin antibiotics