Isolation and Structural Elucidation of AC326-.ALPHA., A New Member of the Moenomycin Group.
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چکیده
منابع مشابه
Isolation and structural elucidation of AC326-alpha, a new member of the moenomycin group.
(0.25 mg/liter), and CaCO3(7 g/liter). Air was sparged at 10 liter/minute; agitation was set at 500 rpm; temperature was maintained at 28°C; dissolved oxygen was set to 99.9% at 0 time. The whole mash was harvested after it was incubated for 4 days. The pellet obtained by centrifugation was extracted with methanol (6 liters) and the extract, upon concentration to a volume of 1 liter, was partit...
متن کاملISOLATION AND STRUCTURAL ELUCIDATION OF THE FIRST KNOWN C-HOMOPROTOBERBERINE
A novel C-homoprotoberberine alkaloid, Hediamine (2), has been isolated from the roots of Berberis actinucantha (Berberidaceae). Conclusive proof for the structure of hediamine was obtained by its comparison with the isomeric lactam (4), by chemical transformation, and by means of spectroscopic techniques (UV, IR, MS, NMR).
متن کاملthe investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
on the comparison of keyword and semantic-context methods of learning new vocabulary meaning
the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 2000
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.53.191