cephalosporin biosynthetic process
The chemical reactions and pathways resulting in the formation of a cephalosporin, any of large class of tetracyclic triterpene broad-spectrum antibiotics similar both chemically and in their mode of action to penicillin, first isolated from the culture filtrates of mediterranean fungus acremonium (cephalosporium acremonium), and effective against gram-positive bacteria.
GO:0030654
beta-lactam antibiotic biosynthetic process
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GO:0044272
sulfur compound biosynthetic process
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