Sodium Carbonate → tert-Butyl {(1R,2R)-2-[({4-[6-(difluoromethoxy)pyrazolo[1,5-a]pyrimidin-3-yl]-5-ethylthiophen-2-yl}carbonyl)amino]-3,3-difluorocyclohexyl}carbamate

HRID 1842610ノート

反応式

HRID 1842610 の反応式
Br[C:2]1[CH:3]=[N:4][N:5]2[CH:10]=[C:9]([O:11][CH:12]([F:14])[F:13])[CH:8]=[N:7][C:6]=12.[C:15]([O:19][C:20](=[O:49])[NH:21][C@@H:22]1[CH2:27][CH2:26][CH2:25][C:24]([F:29])([F:28])[C@@H:23]1[NH:30][C:31]([C:33]1[S:34][C:35]([CH2:47][CH3:48])=[C:36](B2OC(C)(C)C(C)(C)O2)[CH:37]=1)=[O:32])([CH3:18])([CH3:17])[CH3:16].C([O-])([O-])=O.[Na+].[Na+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CN(C=O)C>[C:15]([O:19][C:20](=[O:49])[NH:21][C@@H:22]1[CH2:27][CH2:26][CH2:25][C:24]([F:29])([F:28])[C@@H:23]1[NH:30][C:31]([C:33]1[S:34][C:35]([CH2:47][CH3:48])=[C:36]([C:2]2[CH:3]=[N:4][N:5]3[CH:10]=[C:9]([O:11][CH:12]([F:14])[F:13])[CH:8]=[N:7][C:6]=23)[CH:37]=1)=[O:32])([CH3:18])([CH3:17])[CH3:16]

参加物

6

反応物 3

HCID 10340Sodium CarbonateHCID 673254323-Bromo-6-(difluoromethoxy)pyrazolo[1,5-a]pyrimidineHCID 89750975tert-Butyl[(1R,2R)-2-({[5-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl]carbonyl}amino)-3,3-difluorocyclohexyl]carbamate

生成物 1

HCID 68304376tert-Butyl {(1R,2R)-2-[({4-[6-(difluoromethoxy)pyrazolo[1,5-a]pyrimidin-3-yl]-5-ethylthiophen-2-yl}carbonyl)amino]-3,3-difluorocyclohexyl}carbamate収率 56.1%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
85 °C

実験手順

3-Bromo-6-(difluoromethoxy)pyrazolo[1,5-a]pyrimidine (0.030 g, 0.114 mmol), tert-butyl[(1R,2R)-2-({[5-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl]carbonyl}amino)-3,3-difluorocyclohexyl]carbamate (0.059 g, 0.115 mmol), Pd(PPh3)4 (6.57 mg, 0.007 mmol), and 2 M Na2CO3 (aq) (0.170 mL, 0.341 mmol) were placed in a sealed tube and DMF (1.14 mL) added. The mixture was purged with N2 for 5 min. The reaction was heated to 85° C. for 16 h. The mixture was cooled to room temperature, diluted with dichloromethane, and washed twice with saturated sodium bicarbonate (aq) and once with brine. The organic layer was dried with sodium sulfate, filtered, and concentrated under reduced pressure. The crude product was purified by column chromatography (0-70% EtOAc/Hex) to give the title compound (0.037 g, 0.064 mmol). LRMS (APCI) calc'd for (C25H29F4N5O4S) [M+H]+, 572.2; found 572.1.

後処理

  1. customThe mixture was purged with N2 for 5 min
  2. temperatureThe mixture was cooled to room temperature
  3. additiondiluted with dichloromethane
  4. washwashed twice with saturated sodium bicarbonate (aq) and once with brine
  5. dry with materialThe organic layer was dried with sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe crude product was purified by column chromatography (0-70% EtOAc/Hex)

出典と根拠

ORDレコード
ord-9a053bb8a9e34136b024e380d4c5514c
出典データセット
uspto-grants-2015_02
特許番号
US08946237B2

反応ノート

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