Diisopropylethylamine → [Rac]-5-chloro-1h-indole-7-carboxylic acid (4-tert-butyl-benzyl)-[2-(4-chloro-phenyl)-2-fluoro-ethyl]-amide

HRID 855389Notes

Reaction equation

HRID 855389 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[C:9]([C:11]([OH:13])=O)[CH:10]=1)[NH:7][CH:6]=[CH:5]2.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.C(N(CC)C(C)C)(C)C.[C:45]([C:49]1[CH:66]=[CH:65][C:52]([CH2:53][NH:54][CH2:55][CH:56]([C:58]2[CH:63]=[CH:62][C:61]([Cl:64])=[CH:60][CH:59]=2)[F:57])=[CH:51][CH:50]=1)([CH3:48])([CH3:47])[CH3:46]>CN(C=O)C.O>[C:45]([C:49]1[CH:66]=[CH:65][C:52]([CH2:53][N:54]([CH2:55][CH:56]([C:58]2[CH:59]=[CH:60][C:61]([Cl:64])=[CH:62][CH:63]=2)[F:57])[C:11]([C:9]2[CH:10]=[C:2]([Cl:1])[CH:3]=[C:4]3[C:8]=2[NH:7][CH:6]=[CH:5]3)=[O:13])=[CH:51][CH:50]=1)([CH3:48])([CH3:46])[CH3:47]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 668685635-chloro-1H-indole-7-carboxylic acidHCID 69341923[Rac]-(4-tert-butyl-benzyl)-[2-(4-chloro-phenyl)-2-fluoro-ethyl]-amine

Product 1

HCID 69347056[Rac]-5-chloro-1h-indole-7-carboxylic acid (4-tert-butyl-benzyl)-[2-(4-chloro-phenyl)-2-fluoro-ethyl]-amideYield 22.6%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×

Procedure

To a solution of 15 mg (0.08 mmol) of 5-chloro-1H-indole-7-carboxylic acid and 24 mg of TBTU (0.08 mmol) in 1.5 ml DMF, were added 0.066 ml (0.38 mmol) of N,N-diisopropylethyl amine in 1 ml DMF. After stirring for 5 min at rt, 25 mg (0.08 mmol) of [rac]-(4-tert-butyl-benzyl)-[2-(4-chloro-phenyl)-2-fluoro-ethyl]-amine were added. After stirring for 17 h at rt, the reaction mixture was diluted with 40 ml water and extracted with EtOAc (2×). The combined organic phases were washed with water and brine, dried with magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography (8 g silica gel; heptane/EtOAc 4:1) to give 9 mg (21%) of a light yellow solid. MS (ISP): 497.3 (M+H)+.

Workup

  1. stirringAfter stirring for 17 h at rt
  2. extractionextracted with EtOAc (2×)
  3. washThe combined organic phases were washed with water and brine
  4. dry with materialdried with magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by column chromatography (8 g silica gel; heptane/EtOAc 4:1)

Sources & evidence

ORD record
ord-9a4e3501cb5247e1962dde8225381184
Source dataset
uspto-grants-2007_08
Patent number
US07259183B2

Reaction notes

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