Тип публикации: статья из журнала
Год издания: 2014
Идентификатор DOI: 10.1134/S1068162014070097
Ключевые слова: betulin, sulfation, chlorosulfonic acid, 1,4-dioxane, N,N-dimethylformamide, betulin 3,28-disulfate
Аннотация: The reaction of sulfation of betulin with chlorosulfonic acid in dioxane or dimethylformamide was found to proceed in homogeneous medium at 40-60A degrees C. It was shown that the esterification of betulin to betulin 3,28-disulfate was completed for 4-5 hours. Betulin disulfate was isolated in the form of the sodium salt.
Журнал: RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY
Выпуск журнала: Vol. 40, Is. 7
Номера страниц: 748-751
ISSN журнала: 10681620
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER