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Different neo-clerodane diterpenoids were isolated from a dichloromethane extract of Ajuga bracteosa depending on the isolation procedure used, owing to the labile nature of these tetrahydrofurofuran derivatives. Under "hydroxyl-free" purification conditions, both clerodin- and dihydroclerodin-type
In order to explore the suitability of reversed-phase HPLC for the rapid isolation, identification and semi-preparative fractionation of neo-clerodane diterpenes from Ajuga remota, an extract from aerial parts of the plant was examined using a C18 column with UV detection and gradient elution with
In a bioassay-guided search for antimycobacterial natural products from higher plants, we have chemically investigated the methanol extract of aerial parts of Ajuga remota Benth. (Labiatae) for its active constituent(s). Bioactive chromatographic fractions of the crude extract provided the known