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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1505731Generated: November 1, 2026

Triethylamine → 3,3,3-trifluoro-1-(6-phenethyl-7-(trifluoromethyl)-3,4-dihydro-[1,4]diazepino[6,7,1-hi]indol-2(1H)-yl)propan-1-one

https://huagongshe.com/reaction/1505731

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant4,4,4-Trifluorobutanoic acidHCID 2777085—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant6-Phenethyl-7-(trifluoromethyl)-1,2,3,4-tetrahydro-[1,4]diazepino[6,7,1-hi]indoleHCID 86691988—
SolventTetrahydrofuranHCID 8028—
Product3,3,3-trifluoro-1-(6-phenethyl-7-(trifluoromethyl)-3,4-dihydro-[1,4]diazepino[6,7,1-hi]indol-2(1H)-yl)propan-1-oneHCID 86692002—

Reaction Steps

A mixture of 6-phenethyl-7-(trifluoromethyl)-1,2,3,4-tetrahydro-[1,4]diazepino[6,7,1-hi]indole (prepared as described in Example 2 above, 66 mg, 0.17 mmol), 3-trifluoromethylpropionic acid (23 mg, 0.18 mmol), HATU (75 mg, 0.2 mmol) and triethylamine (87 mg, 0.86 mmol) in THF (7 mL) was stirred overnight. The resulting mixture was partitioned between etyl acetate and water, and the organic layer was washed sequentially with NaHCO3 (sat'd) and brine, then dried (Na2SO4) and concentrated. The residue was purified by reverse-phase chromatography (CH3CN/H2O-TFA) to yield 3,3,3-trifluoro-1-(6-phenethyl-7-(trifluoromethyl)-3,4-dihydro-[1,4]diazepino[6,7,1-hi]indol-2(1H)-yl)propan-1-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09216998B2
Source datasetuspto-grants-2015_12
ORD IDord-5ce1aff59e324a00a573d6648955ace1
Source noteuspto-grants-2015_12