Trifluoroacetic acid → 2-[4-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl]-2,4,5,6,7,8-hexahydropyrazolo[3,4-d]azepine

HRID 1364126Notes

Reaction equation

HRID 1364126 reaction equation
[CH3:1][C:2]1[N:6]=[C:5]([C:7]2[CH:12]=[CH:11][C:10]([N:13]3[CH:22]=[C:21]4[C:15]([CH2:16][CH2:17][N:18](C(OC(C)(C)C)=O)[CH2:19][CH2:20]4)=[N:14]3)=[CH:9][CH:8]=2)[O:4][N:3]=1.FC(F)(F)C(O)=O>ClCCl.CO>[CH3:1][C:2]1[N:6]=[C:5]([C:7]2[CH:12]=[CH:11][C:10]([N:13]3[CH:22]=[C:21]4[C:15]([CH2:16][CH2:17][NH:18][CH2:19][CH2:20]4)=[N:14]3)=[CH:9][CH:8]=2)[O:4][N:3]=1

Participants

5

Reactant 2

HCID 6422Trifluoroacetic acidHCID 669308431,1-Dimethylethyl 2-[4-(3-methyl-1,2,4-oxadiazol-5-yl)phenyl]-4,5,7,8-tetrahydropyrazolo[3,4-d]azepine-6(2H)-carboxylate

Product 1

HCID 669307922-[4-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl]-2,4,5,6,7,8-hexahydropyrazolo[3,4-d]azepine

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 1,1-dimethylethyl 2-[4-(3-methyl-1,2,4-oxadiazol-5-yl)phenyl]-4,5,7,8-tetrahydropyrazolo[3,4-d]azepine-6(2H)-carboxylate (may be prepared as described in Description 34) (159 mg, 0.40 mmol) in dichloromethane (12 ml) was added trifluoroacetic acid (6 ml). The resulting mixture was stirred at room temperature for 30 minutes and then diluted with methanol. Reaction was purified by SCX, eluting with methanol and then 2M ammonia/methanol. The basic fractions were combined and the solvent evaporated in vacuo to afford the title compound (D35). MS (ES+) m/e 296 [M+H]+.

Workup

  1. customReaction
  2. customwas purified by SCX
  3. washeluting with methanol
  4. customthe solvent evaporated in vacuo

Sources & evidence

ORD record
ord-b473c6caec1c4609b474a4b454f6d61d
Source dataset
uspto-grants-2011_02
Patent number
US07888347B2

Reaction notes

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