Sodium hydroxide--water (1/1/1) → Elagolix Sodium
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C([O:3][C:4](=[O:47])[CH2:5][CH2:6][CH2:7][NH:8][C@H:9]([C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1)[CH2:10][N:11]1[C:16](=[O:17])[C:15]([C:18]2[CH:23]=[CH:22][CH:21]=[C:20]([O:24][CH3:25])[C:19]=2[F:26])=[C:14]([CH3:27])[N:13]([CH2:28][C:29]2[C:34]([C:35]([F:38])([F:37])[F:36])=[CH:33][CH:32]=[CH:31][C:30]=2[F:39])[C:12]1=[O:40])C.[OH-].[Na+:49].O>O>[Na+:49].[F:26][C:19]1[C:20]([O:24][CH3:25])=[CH:21][CH:22]=[CH:23][C:18]=1[C:15]1[C:16](=[O:17])[N:11]([CH2:10][C@H:9]([NH:8][CH2:7][CH2:6][CH2:5][C:4]([O-:47])=[O:3])[C:41]2[CH:42]=[CH:43][CH:44]=[CH:45][CH:46]=2)[C:12](=[O:40])[N:13]([CH2:28][C:29]2[C:34]([C:35]([F:38])([F:36])[F:37])=[CH:33][CH:32]=[CH:31][C:30]=2[F:39])[C:14]=1[CH3:27]참가 물질
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- 온도
- 22.5 °C
실험 절차
To a reactor was charged a solution of 4-((R)-2-[5-(2-fluoro-3-methoxy-phenyl)-3-(2-fluoro-6-trifluoromethyl-benzyl)-4-methyl-2,6-dioxo-3,6-dihydro-2H-pyrimidin-1-yl]-1-phenyl-ethylamino)-butyric acid ethyl ester 4a from the previous step. Reagent alcohol (6.0 L) was added and the temperature adjusted to 20° C. A solution of NaOH/water (440 g/6.0 L) was added and the reactor contents were stirred at 20-25° C. for two hours until reaction completion. Water (9.0 L) was added and the reactor contents were concentrated using vacuum distillation to a volume of approximately 15.0 L. Water (15.0 L) and methyl isobutyl ketone (9.0 L) was charged, the mixture was agitated, the layers were separated, and the aqueous layer was retained. A second wash with methyl isobutyl ketone may be performed if needed. Methyl isobutyl ketone (9.0 L) was added and the mixture concentrated by vacuum distillation to a volume of approximately 30 L and ethanol content less than 3%. The reactor contents were set to a temperature of 25-30° C. and sodium chloride (4507 g) and methyl isobutyl ketone (21.0 L) were charged to the reactor and agitated. The layers were separated and the organic layer was concentrated to ˜2-3 volumes methyl isobutyl ketone. The concentrated solution was filtered through Celite and a 0.3 μm line filter. The filtered solution was charged to a well-agitated reactor containing heptane (30.0 L) cooled to 10-20° C. The mixture was stirred for two hours, filtered, and the cake was washed with heptane (8 L). The product was dried in a vacuum oven for 24-48 hr at 70-75° C. to provide 4-((R)-2-[5-(2-fluoro-3-methoxy-phenyl)-3-(2-fluoro-6-trifluoromethyl-benzyl)-4-methyl-2,6-dioxo-3,6-dihydro-2H-pyrimidin-1-yl]-1-phenyl-ethylamino)-butyric acid sodium salt 5-1 as an off-white solid (2.46 kg, 64% yield). LCMS (ESI) m/z 632.2 (MH+)
후처리
- customadjusted to 20° C
- concentrationthe reactor contents were concentrated
- distillationvacuum distillation to a volume of approximately 15.0 L
- additionWater (15.0 L) and methyl isobutyl ketone (9.0 L) was charged
- stirringthe mixture was agitated
- customthe layers were separated
- washA second wash with methyl isobutyl ketone
- additionMethyl isobutyl ketone (9.0 L) was added
- concentrationthe mixture concentrated by vacuum distillation to a volume of approximately 30 L and ethanol content less than 3%
- customwere set to a temperature of 25-30° C. and sodium chloride (4507 g) and methyl isobutyl ketone (21.0 L)
- additionwere charged to the reactor
- stirringagitated
- customThe layers were separated
- concentrationthe organic layer was concentrated to ˜2-3 volumes methyl isobutyl ketone
- filtrationThe concentrated solution was filtered through Celite
- filtrationa 0.3 μm line filter
- additionThe filtered solution was charged to a well-agitated reactor
- additioncontaining heptane (30.0 L)
- temperaturecooled to 10-20° C
- stirringThe mixture was stirred for two hours
- filtrationfiltered
- washthe cake was washed with heptane (8 L)
- customThe product was dried in a vacuum oven for 24-48 hr at 70-75° C.
출처 및 근거
- ORD 기록
- ord-1e1c4be51aff4a39bd64aa030d33bd8b
- 출처 데이터셋
- uspto-grants-2016_07
- 특허 번호
- US09382214B2
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