Trifluoroacetic acid → HCID 59129249, compound

HRID 1991883Notes

Reaction equation

HRID 1991883 reaction equation
[C:1]([C:5]1[N:6]([CH2:32][CH2:33][NH:34]C(=O)OC(C)(C)C)[C:7]2[C:12]([CH:13]=1)=[CH:11][C:10]([NH:14][C:15]([C:17]1([C:20]3[CH:30]=[CH:29][C:23]4[O:24][C:25]([F:28])([F:27])[O:26][C:22]=4[CH:21]=3)[CH2:19][CH2:18]1)=[O:16])=[C:9]([F:31])[CH:8]=2)([CH3:4])([CH3:3])[CH3:2].FC(F)(F)C(O)=O>ClCCl>[NH2:34][CH2:33][CH2:32][N:6]1[C:7]2[C:12](=[CH:11][C:10]([NH:14][C:15]([C:17]3([C:20]4[CH:30]=[CH:29][C:23]5[O:24][C:25]([F:28])([F:27])[O:26][C:22]=5[CH:21]=4)[CH2:18][CH2:19]3)=[O:16])=[C:9]([F:31])[CH:8]=2)[CH:13]=[C:5]1[C:1]([CH3:4])([CH3:3])[CH3:2]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 59129470HCID 59129470, compound

Product 1

HCID 59129249HCID 59129249, compoundYield 82.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of tert-butyl 2-(2-tert-butyl-5-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-6-fluoro-1H-indol-1-yl)ethylcarbamate (137.5 mg, 0.24 mmol) in dichloromethane (1.8 mL) was added trifluoroacetic acid (444 μL, 5.8 mmol) and the mixture was stirred at room temperature for 1 hour. The reaction was diluted with dichloromethane and washed with saturated aqueous NaHCO3 solution (3 mL) and brine (3 mL). The organic layer was dried over Na2SO4, filtered and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel (0-10% methanol in dichloromethane) to yield N-(1-(2-aminoethyl)-2-tert-butyl-6-fluoro-1H-indol-5-yl)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide as a white solid (93.7 mg, 82%). ESI-MS m/z calc. 473.19, found 474.5 (M+1)+. Retention time 1.61 minutes.

Workup

  1. washwashed with saturated aqueous NaHCO3 solution (3 mL) and brine (3 mL)
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. customevaporated under reduced pressure
  5. customThe crude product was purified by column chromatography on silica gel (0-10% methanol in dichloromethane)

Sources & evidence

ORD record
ord-f04e6d74bf164a199799a4ab8798f1a9
Source dataset
uspto-grants-2010_01
Patent number
US07645789B2

Reaction notes

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