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β- Sitosterol 1 and the intermediate 5-hydroxy-6-ketosteroids 2 and 3 were used to synthesize 5 β -hydroxy-6-ketosteroid oximes 4 and 5. Dehydration of 5 from Cinachyrella sponges forms (24R,6E)-24-ethylcholest-6-hydroximino-4-en-3-one 6, a steroidal oxime
The accumulation dynamics of ecdysterone, water-soluble polysaccharides, and pectinic substances during growth of callus tissue of Ajuga turkestanica were studied
Isoquercitrin and the new flavonglycoside zeravschanoside, 5,6,8,3',4'-pentahydroxy-7-O- β -D-glucopyranosylflavone, the structure of which was established from chemical transformations and spectral data, were isolated from Juniperus zeravschanica Kom
Oil yields and compositions from seeds of 15 Ebenus taxa growing in Turkey were investigated. The yields were found between 4.0% and 13.0%. The seeds of E. Barbigera showed the highest while E. Plumosa var. plumosa showed the lowest yield of oil among the 15 taxa investigated. GC/MS showed that...
The ecdysteroid content of Silene claviformis has been analyzed and the four major compounds have been identified as 20-hydroxyecdysone, 2-deoxy-20-hydroxyecdysone, 2-deoxyecdysone, and integristerone A. Two new minor compounds have also been identified
Water-distilled essential oils from flowering spikes of Sideritis ozturkii (Lamiaceae) , a new species, were analyzed by GC/MS. The main components were found to be α -pinene (31.1%, 16.0%, and 6.2%), and β -pinene (20.2%, 14.2%, and 7.3%) in three samples collected from the same locality at...
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