SU610380A1 - Method of preparing 2,2'-anhydro-1-beta-d-arabinofuranosylcytosine hydrochloride - Google Patents
Method of preparing 2,2'-anhydro-1-beta-d-arabinofuranosylcytosine hydrochloride Download PDFInfo
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- SU610380A1 SU610380A1 SU752193580A SU2193580A SU610380A1 SU 610380 A1 SU610380 A1 SU 610380A1 SU 752193580 A SU752193580 A SU 752193580A SU 2193580 A SU2193580 A SU 2193580A SU 610380 A1 SU610380 A1 SU 610380A1
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- anhydro
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- dimethylformamide
- hydrochloride
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Description
(54) СПОСОБ ПОЛУЧЕНИЯ ГИДРОХЛОРИДА 2,2-АНГИДРО-1- (Ь- D -АРАБИНОФУРАНОЗИЛЦИТОЗИНА(54) METHOD FOR OBTAINING HYDROCHLORIDE 2,2-ANHYDRO-1- (b-D-arabinofuranosilcytosine
Пример. Суспендируют 50 г цитидина в смеси.390 мл диметилформамида и 390 мл ацетонитрила, охлаждают до и прибавл ют 125 мл хлорокиси фосфора, поддержива температуру 2О-30°С,Example. 50 g of cytidine are suspended in a mixture of .390 ml of dimethylformamide and 390 ml of acetonitrile, cooled down, and 125 ml of phosphorus oxychloride are added, maintaining the temperature at 2-30 ° C,
При 2t)-30C выдерживают реакционн смесь 5-6 ч, добавл ют 103 мл воды, поддержива температуру не выше 40°С выдерживают 1 ч, подогревают до кипени и кип т т 20-30 мин.At 2t -30 ° C, the reaction mixture is kept for 5-6 hours, 103 ml of water are added, keeping the temperature no higher than 40 ° C, kept for 1 hour, heated to boiling and boiled for 20-30 minutes.
Постепенно из реакционной массы в осадок выпадает 2,2-ангидро-i- |Ь - D -арабинофуранозилцитозин.2,2-Anhydro-i- | L-D-arabinofuranosylcytosine is gradually precipitated from the reaction mass.
Реакционную смесь охлаждают, осадок отфильтровывают, промывают два раза этанолом. Получаиот 31,4 г (58%) белого кристаллического вещества , .т. пл. 265°С; о(1: - 21,6° (, вода).The reaction mixture is cooled, the precipitate is filtered, washed twice with ethanol. Receive 31.4 g (58%) of a white crystalline substance, t. square 265 ° C; o (1: - 21.6 ° (, water).
УФ-спектр: Д.„дцс(РН 6) 231 им (9500), 262 нм ( 10700) , .. 243 ( g 6600),UV spectrum: D. „dtss (PH 6) 231 named after (9500), 262 nm (10700), .. 243 (g 6600),
Найдено,%: С 41,14; Н 4,49; N 16,0 С1 1.4,03.Found,%: C 41.14; H 4.49; N 16.0 C1 1.4.03.
CqH N Ой- НС1.CqH N Oi-HC1.
Вычислено,%: С 41,31; Н 4,62, N 16,06; С1 13,55. .Calculated,%: C 41.31; H 4.62, N 16.06; C1 13.55. .
К реакционной смеси, полученной, как указано выше, после добавлени роды и выдержки в течение 1 ч при .температуре не выше приливают 500 мл спирта (например, этанол илиAfter adding the delivery and keeping for 1 hour at a temperature not higher than, 500 ml of alcohol (for example ethanol or
изопропанол) и кип т т 20-30 мин. Раствор охлаждают, отфильтровывают 2, 2-ангидро-1- fi- D-арабинофуранозилцитозин . Осадок промывают два раза спиртом. Выход 35,5 г (65%).isopropanol) and boil for 20-30 minutes. The solution is cooled, 2, 2-anhydro-1-fi- D-arabinofuranosylcytosine is filtered off. The precipitate is washed twice with alcohol. The yield of 35.5 g (65%).
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752193580A SU610380A1 (en) | 1975-12-01 | 1975-12-01 | Method of preparing 2,2'-anhydro-1-beta-d-arabinofuranosylcytosine hydrochloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752193580A SU610380A1 (en) | 1975-12-01 | 1975-12-01 | Method of preparing 2,2'-anhydro-1-beta-d-arabinofuranosylcytosine hydrochloride |
Publications (1)
Publication Number | Publication Date |
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SU610380A1 true SU610380A1 (en) | 1980-04-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU752193580A SU610380A1 (en) | 1975-12-01 | 1975-12-01 | Method of preparing 2,2'-anhydro-1-beta-d-arabinofuranosylcytosine hydrochloride |
Country Status (1)
Country | Link |
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SU (1) | SU610380A1 (en) |
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1975
- 1975-12-01 SU SU752193580A patent/SU610380A1/en active
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