Potassium Carbonate → (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-({6-chloro-3-[5-(2-hydroxy-1,1-dimethylethyl)-2-methoxyphenyl]pyridin-2-yl}methyl)-4-methyl-1,3-oxazolidin-2-one

HRID 604642노트

반응식

HRID 604642 반응식
[F:1][C:2]([F:30])([F:29])[C:3]1[CH:4]=[C:5]([C@H:13]2[O:17][C:16](=[O:18])[N:15]([CH2:19][C:20]3[C:25](Br)=[CH:24][CH:23]=[C:22]([Cl:27])[N:21]=3)[C@H:14]2[CH3:28])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.[CH3:31][O:32][C:33]1[CH:38]=[CH:37][C:36]([C:39]([CH3:43])([CH3:42])[CH2:40][OH:41])=[CH:35][C:34]=1B1OC(C)(C)C(C)(C)O1.C(=O)([O-])[O-].[K+].[K+]>C1COCC1.CCOC(C)=O>[F:1][C:2]([F:30])([F:29])[C:3]1[CH:4]=[C:5]([C@H:13]2[O:17][C:16](=[O:18])[N:15]([CH2:19][C:20]3[C:25]([C:34]4[CH:35]=[C:36]([C:39]([CH3:43])([CH3:42])[CH2:40][OH:41])[CH:37]=[CH:38][C:33]=4[O:32][CH3:31])=[CH:24][CH:23]=[C:22]([Cl:27])[N:21]=3)[C@H:14]2[CH3:28])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 575443992-[4-Methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-2-methylpropan-1-olHCID 57576268(4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-[(3-bromo-6-chloropyridin-2-yl)methyl]-4-methyl-1,3-oxazolidin-2-one2회

생성물 1

HCID 24969645(4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-({6-chloro-3-[5-(2-hydroxy-1,1-dimethylethyl)-2-methoxyphenyl]pyridin-2-yl}methyl)-4-methyl-1,3-oxazolidin-2-one

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매

실험 절차

To a solution of (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-[(3-bromo-6-chloropyridin-2-yl)methyl]-4-methyl-1,3-oxazolidin-2-one (INTERMEDIATE 9) (107.0 mg, 0.207 mmol) and 2-[4-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-2-methylpropan-1-ol (64 mg, 0.207 mmol) in THF (2.3 mL) was added aqueous potassium carbonate (1.6 mL of a 1M solution, 1.6 mmol). The mixture was degassed with nitrogen. While stirring the reaction vigorously at room temperature, 1,1-bis(di-t-butylphosphino)ferrocene palladium chloride (6.7 mg, 0.01 mmol) was added. The reaction was stirred vigorously at room temperature for 15 min, and then diluted with EtOAc (50 mL). The organics were washed with water and brine (15 mL each). The organic layer was dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography on silica gel (5 to 50% EtOAc/hexanes) afforded impure product, which was repurified with 1:1:1 CH2Cl2:hexanes:Et2O on silica gel to afford (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-({6-chloro-3-[5-(2-hydroxy-1,1-dimethylethyl)-2-methoxyphenyl]pyridin-2-yl}methyl)-4-methyl-1,3-oxazolidin-2-one. Rf=0.29 (40% EtOAc/hexanes). LCMS=616.9 (M+1)+. 1H NMR (CDCl3, 500 MHz, rotamers present) δ 6.94-7.85 (m, 8H), 5.40-5.55 (m, 1H), 4.81-5.08 (m, 1H), 3.54-4.36 (m, 7H), 1.95-2.59 (m, 1H), 1.30-1.34 (m, 6H), 0.62-0.74 (m, 3H).

후처리

  1. customThe mixture was degassed with nitrogen
  2. customthe reaction vigorously at room temperature
  3. stirringThe reaction was stirred vigorously at room temperature for 15 min
  4. washThe organics were washed with water and brine (15 mL each)
  5. dry with materialThe organic layer was dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurification of the residue by flash chromatography on silica gel (5 to 50% EtOAc/hexanes)
  9. customafforded impure product, which
  10. customwas repurified with 1:1:1 CH2Cl2

출처 및 근거

ORD 기록
ord-b7205b0856ef472786e5dbb30a8d1d1c
출처 데이터셋
uspto-grants-2011_03
특허 번호
US07910592B2

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