New orthoquinones from the roots of Salvia lanigera.
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).
Lee
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IS
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.
Kaneda
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N
Suttisri
R
R
El-Lakany
A M
AM
Sabri
N N
NN
Kinghorn
A D
AD