lenapenem lenapenem lenapenem is a carbapenem antibiotic. lenapenemclinical dataother namesbo-2727identifiers iupac name (4r,5s,6s)-6--3-pyrrolidin-3-yl]sulfanyl-4-methyl-7-oxo-1-azabicyclohept-2-ene-2-carboxylic acid cas number149951-16-6pubchem cid216262chemspider187460uniid6nbq3h12uchemical and physical dataformulac18h29n3o5smolar mass399.51 g·mol−13d model (jsmol)interactive image smiles c12(c(=o)n2c(=c1s3c(nc3)(ccnc)o)c(=o)o)(c)o