IRON(III)-COPPER(II) AND MANGANESE(III)-COPPER(II) PROMOTED CYCLIZATIONS - A NEW STEREOSELECTIVE APPROACH TOWARDS ALPHA-METHYL SUBSTITUTED PENICILLIN DERIVATIVES
W. Cabri et al., IRON(III)-COPPER(II) AND MANGANESE(III)-COPPER(II) PROMOTED CYCLIZATIONS - A NEW STEREOSELECTIVE APPROACH TOWARDS ALPHA-METHYL SUBSTITUTED PENICILLIN DERIVATIVES, Journal of the Chemical Society, Chemical Communications, (5), 1994, pp. 597-598
The stereoselective synthesis of alpha-methyl substituted penicillin b
y Fe-III-Cu-II and Mn-III-Cu-II promoted cyclizations and and its rela
tionship with the Baldwin's INPS (isopenicillin N synthase) mechanisti
c hypothesis on the biosynthesis of penicillin is described.