title: New orthoquinones from the roots of Salvia lanigera.
abstract: A chloroform extract of the roots of the Egyptian Salvia lanigera Poir. afforded two new orthoquinones, lanigerone (8-hydroxy-3-isopropyl-7-methyl-1,2-naphthoquinone) and salvigerone (methyl 1,10-seco-5(10),6,8,13-abietatetraene-11,12-dion-1-oate) together with two known diterpenoids, arucadiol and pisiferal. Structural assignments of the new compounds were based on spectroscopic methods (UV, IR, MS, ID- and 2D-NMR).
authors.affiliation: Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, USA.
authors.forename: I S
authors.initials: IS
authors.lastname: Lee
authors.forename: N
authors.initials: N
authors.lastname: Kaneda
authors.forename: R
authors.initials: R
authors.lastname: Suttisri
authors.forename: A M
authors.initials: AM
authors.lastname: El-Lakany
authors.forename: N N
authors.initials: NN
authors.lastname: Sabri
authors.forename: A D
authors.initials: AD
authors.lastname: Kinghorn