title: Revised Relative and Absolute Stereochemistry of (+)-Purpurin
abstract: The relative and absolute stereochemistries of (+)-purpurin (3), a flavanone natural product from Tephrosia, were determined to be 2S,7aR,10S,10aS by synthesis from semiglabrin in conjunction with X-ray crystallographic analysis.
authors.affiliation: Department of Chemistry, P. M. Gross Chemical Laboratory, Duke University, Durham, North Carolina 27708-0346.
authors.initials: MC
authors.lastname: Pirrung
authors.initials: YR
authors.lastname: Lee
authors.initials: AT
authors.lastname: Morehead
authors.initials: AT
authors.lastname: McPhail