RU2023109267A - METHOD FOR OBTAINING (15α,16α,17β)-ESTRA-1,3,5(10)-TRIEN-3,15,16,17-TETROL MONOHYDRATE (ESTETROL MONOHYDRATE) - Google Patents

METHOD FOR OBTAINING (15α,16α,17β)-ESTRA-1,3,5(10)-TRIEN-3,15,16,17-TETROL MONOHYDRATE (ESTETROL MONOHYDRATE) Download PDF

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RU2023109267A
RU2023109267A RU2023109267A RU2023109267A RU2023109267A RU 2023109267 A RU2023109267 A RU 2023109267A RU 2023109267 A RU2023109267 A RU 2023109267A RU 2023109267 A RU2023109267 A RU 2023109267A RU 2023109267 A RU2023109267 A RU 2023109267A
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RU
Russia
Prior art keywords
monohydrate
estetrol
water
estra
tetrol
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RU2023109267A
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Russian (ru)
Inventor
Роберто ЛЕННА
Андреа ФАЗАНА
Риккардо ЛУЧЕНТИНИ
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Индустриале Кимика С.Р.Л.
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Publication of RU2023109267A publication Critical patent/RU2023109267A/en

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1. Способ превращения Эстетрола в Эстетрол моногидрат согласно следующей последовательности операций:1. The method of converting Estetrol to Estetrol monohydrate according to the following sequence of operations: E.1) растворение чистого Эстетрола в безводной форме в смешивающемся с водой органическом растворителе, таком как ацетон, метанол, этанол, изопропанол, тетрагидрофуран, диметилформамид или диметилацетамид, до полного растворения;E.1) dissolving pure Estetrol in anhydrous form in a water-miscible organic solvent such as acetone, methanol, ethanol, isopropanol, tetrahydrofuran, dimethylformamide or dimethylacetamide until completely dissolved; E.2) смешивание раствора со стадии E.1) с водой;E.2) mixing the solution from step E.1) with water; E.3) удаление органического растворителя отгонкой;E.3) removal of the organic solvent by distillation; E.4) перемешивание полученной суспензии, предпочтительно по меньшей мере 15 минут, при температуре от 5 до 20°C;E.4) stirring the resulting suspension, preferably at least 15 minutes, at a temperature of from 5 to 20°C; E.5) фильтрование и промывание твердого осадка;E.5) filtering and washing the solid precipitate; E.6) сушка полученного твердого вещества в течение по меньшей мере 5 часов, при температуре по меньшей мере 40°C и при пониженном давлении.E.6) drying the resulting solid for at least 5 hours, at a temperature of at least 40°C and under reduced pressure. 2. Способ по п. 1, в котором вода, используемая на стадии E.2), представляет собой чистую воду.2. The method according to claim 1, wherein the water used in step E.2) is pure water. 3. Способ по п. 1 или 2, в котором стадию E.3) осуществляют при пониженном давлении.3. Process according to claim 1 or 2, wherein step E.3) is carried out under reduced pressure.
RU2023109267A 2019-09-27 2020-09-25 METHOD FOR OBTAINING (15α,16α,17β)-ESTRA-1,3,5(10)-TRIEN-3,15,16,17-TETROL MONOHYDRATE (ESTETROL MONOHYDRATE) RU2023109267A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102019000017414 2019-09-27
IT102019000021879 2019-11-22

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
RU2022111255A Division RU2818561C1 (en) 2019-09-27 2020-09-25 METHOD OF PRODUCING (15α,16α,17β)-ESTRA-1,3,5(10)-TRIENE-3,15,16,17-TETROL (ESTETROL) AND INTERMEDIATES IN SAID METHOD

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RU2023109267A true RU2023109267A (en) 2023-05-04

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