Ammonia → (R)-2-(4-(9-Hydroxy-2-(3-hydroxy-3-methylbutoxy)-9-(trifluoromethyl)-9H-fluoren-4-yl)-1H-pyrazol-1-yl)-2-methylpropanamide

HRID 579389Notes

Reaction equation

HRID 579389 reaction equation
[OH:1][C@@:2]1([C:33]([F:36])([F:35])[F:34])[C:14]2[CH:13]=[C:12]([O:15][CH2:16][CH2:17][C:18]([OH:21])([CH3:20])[CH3:19])[CH:11]=[C:10]([C:22]3[CH:23]=[N:24][N:25]([C:27]([CH3:32])([CH3:31])[C:28]([OH:30])=O)[CH:26]=3)[C:9]=2[C:8]2[C:3]1=[CH:4][CH:5]=[CH:6][CH:7]=2.O[N:38]1C2C=CC=CC=2N=N1.C(N=C=NCCCN(C)C)C.N.Cl>CN(C)C=O.O>[OH:1][C@@:2]1([C:33]([F:35])([F:34])[F:36])[C:14]2[CH:13]=[C:12]([O:15][CH2:16][CH2:17][C:18]([OH:21])([CH3:20])[CH3:19])[CH:11]=[C:10]([C:22]3[CH:23]=[N:24][N:25]([C:27]([CH3:32])([CH3:31])[C:28]([NH2:38])=[O:30])[CH:26]=3)[C:9]=2[C:8]2[C:3]1=[CH:4][CH:5]=[CH:6][CH:7]=2

Participants

8

Reactant 5

HCID 222AmmoniaHCID 313Hydrochloric AcidHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 1175992732-{4-[(9R)-9-Hydroxy-2-(3-hydroxy-3-methylbutyloxy)-9-(trifluoromethyl)-9H-fluoren-4-yl]-1H-pyrazol-1-yl}-2-methylpropionic acid

Product 1

HCID 78210288(R)-2-(4-(9-Hydroxy-2-(3-hydroxy-3-methylbutoxy)-9-(trifluoromethyl)-9H-fluoren-4-yl)-1H-pyrazol-1-yl)-2-methylpropanamideYield 90.1%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

Under a nitrogen atmosphere, 2-{4-[(9R)-9-hydroxy-2-(3-hydroxy-3-methylbutyloxy)-9-(trifluoromethyl)-9H-fluoren-4-yl]-1H-pyrazol-1-yl}-2-methylpropionic acid (66.7 g) was dissolved in N,N-dimethylformamide (480 ml), 1-hydroxybenzotriazole (HOBt) 1 hydrate (27.6 g), 1-ethyl-3-(3′-dimethylaminopropyl)carbodiimide (WSC) hydrochloride (34.6 g) and 28% aqueous ammonia (24.5 ml) were added, and the mixture was stirred at room temperature overnight. The reaction mixture was ice-cooled, water (630 ml) and 2N hydrochloric acid (330 ml) were added dropwise, and the mixture was extracted with ethyl acetate (800 ml). The obtained aqueous layer was extracted again with ethyl acetate (500 ml). The obtained organic layers were combined, and washed successively with water (500 ml, twice), saturated aqueous sodium hydrogen carbonate (500 ml), and saturated brine (500 ml). The obtained organic layer was dried over anhydrous sodium sulfate, the insoluble material was filtered off, and the solvent in the filtrate was evaporated to give the title compound (60.0 g).

Workup

  1. temperaturecooled
  2. extractionthe mixture was extracted with ethyl acetate (800 ml)
  3. extractionThe obtained aqueous layer was extracted again with ethyl acetate (500 ml)
  4. washwashed successively with water (500 ml
  5. dry with materialThe obtained organic layer was dried over anhydrous sodium sulfate
  6. filtrationthe insoluble material was filtered off
  7. customthe solvent in the filtrate was evaporated

Sources & evidence

ORD record
ord-07780a5e12444189ad899a1d1986db08
Source dataset
uspto-grants-2015_05
Patent number
US09040717B2

Reaction notes

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