Zobrazeno 1 - 10
of 19
pro vyhledávání: '"N I Shramm"'
Publikováno v:
RUDN Journal of Medicine, Vol 0, Iss 1, Pp 106-108 (2011)
The educational-methodical informational complex on pharmaceutical technology «Cosmetics» for pharmaceutical students was elaborated. The elective course with elements of distance education was carried out. The results of the experiment on conducti
Externí odkaz:
https://doaj.org/article/7b56d1da15ca466b9ef503ade08de81a
Experimental substantiation of alcoholic extracts technology from the scrophulariaceae family plants
Publikováno v:
RUDN Journal of Medicine, Vol 0, Iss 1, Pp 70-72 (2011)
The optimum preparation conditions (including the degree of the raw materials grinding, ethanol concentration, infusion time, preparation technique) of alcoholic extracts from Euphrasia, Melampyrum, Verbascum herbs providing the maximum yield of biol
Externí odkaz:
https://doaj.org/article/a88a490fab6449cda5236ea4028aedcc
Experimental substantiation of alcoholic extracts technology from the Scrophulariaceae family plants
Publikováno v:
RUDN Journal of Medicine, Vol 0, Iss 4, Pp 508-510 (2010)
The optimum preparation conditions of alcoholic extracts from Euphrasia, Melampyrum, Verbascum herbs providing the maximum yield of biologically active substances have been determined. The technology of dry and liquid Euphrasia extracts, liquid Melam
Externí odkaz:
https://doaj.org/article/ae057b4a25fb4fd78adaed5ae38f4c85
Publikováno v:
Pharmaceutical Chemistry Journal. 48:273-275
Optimization of the extraction of biologically active substances from yellow toadflax produced data indicating that the active principles were extracted most completely from raw material if vacuum-filtration extraction was used. The process was carri
Publikováno v:
Pharmaceutical Chemistry Journal. 39:207-211
The content of moisture, ash, extractive substances, impurities, and the main biologically active substances in the above-ground parts of blue cow wheat (Melampyrum pratense) has been studied. The average content of the main components, flavonoids an
Publikováno v:
Pharmaceutical Chemistry Journal. 39:145-148
The content of moisture, ash, extractive substances, and impurities in dry extract from eyebright (Euphrasia brevipila) grass has been studied. The content of the main biologically active components, flavonoids and iridoids, has been estimated at 3.5
Autor:
N. I. Shramm, M. E. Konshin
Publikováno v:
Chemistry of Heterocyclic Compounds. 18:511-515
A substituted nicotininc acid is formed when 6-methyl-2-anilinonicotinonitrile is refluxed with concentrated hydrochloric acid, whereas 4,6-dimethyl-2-anilinonicotinonitrile is not hydrolyzed under these and more severe conditions because of steric h
Publikováno v:
Pharmaceutical Chemistry Journal. 15:249-252
Autor:
N. I. Shramm, M. E. Konshin
Publikováno v:
Chemistry of Heterocyclic Compounds. 20:301-304
3-Substituted 2-alkyl-10H-benzo[b]-1,8-naphthyrid-5-ones were obtained by cyclization of 2-anilinonicotinic acids or the corresponding nitriles. The pK2 values of these compounds range from −4.63 to −5.98 and correlate with the σ substituent con
Autor:
M. E. Konshin, N. I. Shramm
Publikováno v:
Chemistry of Heterocyclic Compounds. 21:93-95
The reaction of 2-arylamno-6-methylnicotinonitriles with acetic anhydride or benzoyl chloride gives N-acyl-2-arylamino-6-methylnicotinonitriles. Upon treatment with hydrogen chloride in anhydrous ethanol, these products are converted to 2-substituted