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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1803310Generated: November 1, 2026

Trifluoroacetic acid → HCID 58110188, compound

https://huagongshe.com/reaction/1803310

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantAzetidineHCID 10422—
ReactantSodium cyanoborohydrideHCID 5003444—
ReactantHCID 66860172HCID 66860172—
SolventEthanolHCID 702—
ProductHCID 58110188HCID 5811018834.4%

Reaction Steps

2-(4-(4-chloro-1H-imidazol-1-yl)-3-methoxyphenylamino)-9-(4-fluorophenyl)-8,9-dihydro-5H-[1,2,4]triazolo[1,5-a]azepin-7(6H)-one (50 mg, 0.107 mmol, from example 137) was added to a mixture of azetidine (6.11 mg, 0.107 mmol), and sodium cyanoborohydride (1.0M in THF, 428 μL, 0.428 mmol) in ethanol (0.535 mL). The mixture was stirred at rt for 16 h and then concentrated in vacuo. The crude product was purified using reverse phase preparatory HPLC (MeOH/water/trifluoroacetic acid) to afford the titled compound (18.7 mg, 27% yield) as a TFA salt. LC-MS (M+H)+ 508.3. 1H NMR (500 MHz, CHLOROFORM-d) δ ppm 8.63 (1 H, d, J=3.7 Hz), 7.89-7.98 (1 H, m), 7.31-7.38 (1 H, m), 7.07-7.22 (5 H, m), 7.01 (2 H, dd, J=8.5, 4.9 Hz), 4.92 (2 H, d, J=4.6 Hz), 4.64-4.77 (1 H, m), 4.42 (2 H, br. s.), 3.98-4.10 (1 H, m), 3.66-3.97 (5 H, m), 2.58-2.90 (2 H, m), 2.14-2.44 (4 H, m).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08349880B2
Source datasetuspto-grants-2013_01
ORD IDord-427c6313e95e4ec1be6740542b7594e2
Source noteuspto-grants-2013_01