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Mentha longifolia (Lamiaceae), an aromatic herb yielded a new halogenated chloro-derivative of menthone (longifone), two new derivatives of β-sitosterol glycoside (longiside-A and -B) and a new flavanone-glycoside (longitin). The β-sitosterol and flavanone glycosides were purified as their acetate derivatives. Structures of all the isolated constituents were elucidated with the aid of HMBC techniques...
Two new p-cymene derivatives named zataroside-A and zataroside-B and a new triacetoxy derivative of the same skeleton have been detected from Zataria multiflora along with p-hydroxybenzoic acid. Their structures were elucidated with the aid of NMR spectroscopy. Zataroside-A was also confirmed by X-ray diffraction technique and the same compound was found to be a strong plant growth inhibiting agent.
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