title: 6,7-Dioxygenated and 5,6,7-Trioxygenated Coumarins from Pterocaulon polystachium.
authors.affiliation: Institute de Química y Metabolismo del Fármaco, Facultad de Farmacia y Bioquífmica, Universidad de Buenos Aires, Capital Federal, Argentina.
authors.forename: P S
authors.initials: PS
authors.lastname: Palacios
authors.forename: A A
authors.initials: AA
authors.lastname: Rojo
authors.forename: J D
authors.initials: JD
authors.lastname: Coussio
authors.forename: N
authors.initials: N
authors.lastname: De Kimpe
authors.forename: S L
authors.initials: SL
authors.lastname: Debenedetti