Trifluoroacetic acid → HCID 59129249, compound

HRID 2038123Notes

Reaction equation

HRID 2038123 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-cd21503982fd49c68c9d6c2c04c5eee4
Source dataset
uspto-grants-2013_11
Patent number
US08575209B2

Reaction notes

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