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Sodium Carbonate → (1S,4R)-4-hydroxy-2,2-dimethyl-4-{5-[3-methyl-5-(4-methyl-pyrimidin-2-ylamino)-phenyl]-1,3-thiazol-2-yl}-cyclohexanecarboxylic acid methyl ester

HRID 410694
ノート
印刷プレビュー

反応式

HRID 410694 の反応式
[CH3:1][C:2]1[CH:7]=[CH:6][N:5]=[C:4]([NH:8][C:9]2[CH:14]=[C:13](B3OC(C)(C)C(C)(C)O3)[CH:12]=[C:11]([CH3:24])[CH:10]=2)[N:3]=1.[CH3:25][O:26][C:27]([C@H:29]1[CH2:34][CH2:33][C@@:32]([C:36]2[S:37][C:38](Br)=[CH:39][N:40]=2)([OH:35])[CH2:31][C:30]1([CH3:43])[CH3:42])=[O:28].C(=O)([O-])[O-].[Na+].[Na+]>CC1CCCO1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:25][O:26][C:27]([C@H:29]1[CH2:34][CH2:33][C@:32]([OH:35])([C:36]2[S:37][C:38]([C:13]3[CH:14]=[C:9]([NH:8][C:4]4[N:3]=[C:2]([CH3:1])[CH:7]=[CH:6][N:5]=4)[CH:10]=[C:11]([CH3:24])[CH:12]=3)=[CH:39][N:40]=2)[CH2:31][C:30]1([CH3:43])[CH3:42])=[O:28]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 10340Sodium CarbonateHCID 584562194-methyl-N-[3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]pyrimidin-2-amineHCID 58456350(1S,4R)-4-(5-Bromo-thiazol-2-yl)-4-hydroxy-2,2-dimethyl-cyclohexanecarboxylic acid methyl ester

生成物 1

HCID 67250092(1S,4R)-4-hydroxy-2,2-dimethyl-4-{5-[3-methyl-5-(4-methyl-pyrimidin-2-ylamino)-phenyl]-1,3-thiazol-2-yl}-cyclohexanecarboxylic acid methyl ester収率 66%

試薬・触媒・溶媒 2

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)触媒HCID 73012-Methyltetrahydrofuran溶媒

反応条件

温度
70 °C

実験手順

To a mixture of (4-methyl-pyrimidin-2-yl)-[3-methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-amine (20.0 g, 56.9 mmol), (1S,4R)-4-(5-Bromo-thiazol-2-yl)-4-hydroxy-2,2-dimethyl-cyclohexanecarboxylic acid methyl ester (19.8 g, 56.9 mmol), and PdCl2(dppf)2 (2.33 g, 2.85 mmol) in degassed 2-methyltetrahydrofuran (237 mL), was added sodium carbonate (2 M in H2O, 56.9 mL, 114 mmol). The reaction flask was purged with nitrogen and then heated to 70° C. for 5 hours. The mixture was cooled to room temperature, diluted with ethyl acetate (100 mL) and filtered over celite. The solution was washed with water, dried over MgSO4, filtered and concentrated in vacuo. Purification by chromatography on silica gel (Isco CombiFlash 100:0 to 40:60, hexanes:ethyl acetate), then by Chromatography on silica gel (2:98, methanol:dichloromethane) provided 17.5 g (37.4 mmol 66%) of (1S,4R)-4-hydroxy-2,2-dimethyl-4-{5-[3-methyl-5-(4-methyl-pyrimidin-2-ylamino)-phenyl]-1,3-thiazol-2-yl}-cyclohexanecarboxylic acid methyl ester as a light tan foam.

後処理

  1. customThe reaction flask was purged with nitrogen
  2. temperatureThe mixture was cooled to room temperature
  3. additiondiluted with ethyl acetate (100 mL)
  4. filtrationfiltered over celite
  5. washThe solution was washed with water
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customPurification by chromatography on silica gel (Isco CombiFlash 100:0 to 40:60, hexanes:ethyl acetate)

出典と根拠

ORDレコード
ord-42d09c24def441bcb2fd1b622d7e91e1
出典データセット
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08759366B2

反応ノート

読み込み中…

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