Hydrochloric Acid → 7-chloro-6-[2-(2-fluorobenzoylamino)-ethoxy]-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine

HRID 911227Notes

Reaction equation

HRID 911227 reaction equation
[NH2:1][CH2:2][CH2:3][O:4][C:5]1[C:15]2[CH2:14][CH2:13][N:12]([C:16](=[O:21])[C:17]([F:20])([F:19])[F:18])[CH2:11][CH2:10][C:9]=2[CH:8]=[CH:7][C:6]=1[Cl:22].[F:23][C:24]1[CH:32]=[CH:31][CH:30]=[CH:29][C:25]=1[C:26](Cl)=[O:27].C(N(CC)CC)C.Cl>C(Cl)Cl>[Cl:22][C:6]1[CH:7]=[CH:8][C:9]2[CH2:10][CH2:11][N:12]([C:16](=[O:21])[C:17]([F:19])([F:18])[F:20])[CH2:13][CH2:14][C:15]=2[C:5]=1[O:4][CH2:3][CH2:2][NH:1][C:26](=[O:27])[C:25]1[CH:29]=[CH:30][CH:31]=[CH:32][C:24]=1[F:23]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 98082-Fluorobenzoyl chlorideHCID 57655967HCID 57655967, compound

Product 1

HCID 866295967-chloro-6-[2-(2-fluorobenzoylamino)-ethoxy]-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepineYield 820%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

Dissolve 6-(2-amino-ethoxy)-7-chloro-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine (100 mg, 0.297 mmol) in DCM (5 mL). Add 2-fluorobenzoyl chloride (39 μL, 0.326 mmol), triethylamine (62 μL, 0.445 mmol) and stir at ambient temperature for 72 h under nitrogen atmosphere. Dilute with DCM, add 1M aqueous HCl and extract the aqueous phase with DCM. Dry the combined organic extracts over MgSO4 and concentrate in vacuo. Purify by chromatography on silica gel eluting with hexane/EtOAc (7:3 and 2:1) to give 7-chloro-6-[2-(2-fluorobenzoylamino)-ethoxy]-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine (111 mg, 820%).

Workup

  1. extractionextract the aqueous phase with DCM
  2. dry with materialDry the combined organic extracts over MgSO4
  3. concentrationconcentrate in vacuo
  4. customPurify by chromatography on silica gel eluting with hexane/EtOAc (7:3 and 2:1)

Sources & evidence

ORD record
ord-4b52eaeb62554150a89d3d55a7f39868
Source dataset
uspto-grants-2011_09
Patent number
US08022062B2

Reaction notes

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