MLchartDataset catalogue

Cephems

Term · Chemistry · MLC-T-CHM-001803

Unsaturated heterocyclic compounds featuring a bicyclic structure where a four-membered β-lactam ring is fused to a six-membered dihydrothiazine ring. The defining feature is a double bond within the six-membered ring, distinguishing this class from the fully saturated cephams. This structural framework forms the core of the cephalosporin class of antibiotics, which are widely used antibacterial agents.

Table 1. Record
IdentifierMLC-T-CHM-001803
FieldChemistry
SubjectOrganic and Biomolecular Chemistry
ReferencesPAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1327 (https://doi.org/10.1351/pac199567081307)
See alsoCephalosporins; Cephams
Record as JSON
{
  "id": "MLC-T-CHM-001803",
  "term": "Cephems",
  "field": "Chemistry",
  "definition": "Unsaturated heterocyclic compounds featuring a bicyclic structure where a four-membered β-lactam ring is fused to a six-membered dihydrothiazine ring. The defining feature is a double bond within the six-membered ring, distinguishing this class from the fully saturated cephams. This structural framework forms the core of the cephalosporin class of antibiotics, which are widely used antibacterial agents.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "cephalosporins",
    "cephams"
  ],
  "references": [
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1327 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cephems/"
}

Record 1,930 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.