65293-13-2Relevant articles and documents
Chiral spiro-β-lactams from 6-diazopenicillanates
Santos, Bruna S.,Nunes, Sandra C.C.,Pais, Alberto A.C.C.,Pinho E Melo, Teresa M.V.D.
experimental part, p. 3729 - 3737 (2012/06/30)
Chiral spiro-β-lactam derivatives have been prepared via stereoselective 1,3-dipolar cycloaddition of 6-diazopenicillanates. Using dipolarophiles such as acrylonitrile, acrylates or methyl vinyl ketone spiro-2-pyrazoline-β-lactams were obtained, whereas t
Penicillins as β-lactamase-dependent prodrugs: Enabling role of a vinyl ester exocyclic to the lactam ring
Ruddle, Carol C.,Smyth, Timothy P.
, p. 2332 - 2333 (2007/10/03)
Incorporation of a vinyl ester exocyclic to the β-lactam ring of a penicillin nucleus enables this to act as a β-lactamase-dependent prodrug - rapid release of the (unactivated) alkoxy component of the vinyl ester is triggered by enzyme-catalysed hydrolys
Stereospecific production of 6- or 7-carbon-substituted-β-lactams
-
, (2008/06/13)
Reaction of 6- or 7-diazo-β-lactams with allylic halides in the presence of a catalytic amount of metallic copper or a copper salt affords 6- or 7-carbon-substituted-β-lactams with the desired stereochemical configuration at the 6- or 7-position. Subseque