Oxacephem

An oxacephem is a molecule similar to a cephem, but with oxygen substituted for the sulfur. They are synthetic compounds not seen in nature. Examples include moxalactam and flomoxef. An oxacephem is a molecule similar to a cephem, but with oxygen substituted for the sulfur. They are synthetic compounds not seen in nature. Examples include moxalactam and flomoxef.