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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2261194Generated: November 2, 2026

Dimethylformamide → 3-(4-Ethyl-piperazin-1-yl)-N-[4-methyl-3-(9-methyl-8-oxo-8,9-dihydro-3H-3,4,9-triaza-cyclopenta[a]naphthalen-7-yl)-phenyl]-5-trifluoromethyl-benzamide

https://huagongshe.com/reaction/2261194

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant7-(5-Amino-2-methyl-phenyl)-9-methyl-3,9-dihydro-3,4,9-triaza-cyclopenta[a]naphthalen-8-oneHCID 59198525—
Reactant3-(4-Ethyl-piperazin-1-yl)-5-trifluoromethyl-benzoic acidHCID 59212518—
Product3-(4-Ethyl-piperazin-1-yl)-N-[4-methyl-3-(9-methyl-8-oxo-8,9-dihydro-3H-3,4,9-triaza-cyclopenta[a]naphthalen-7-yl)-phenyl]-5-trifluoromethyl-benzamideHCID 17757340—

Reaction Steps

A mixture of 7-(5-amino-2-methyl-phenyl)-9-methyl-3,9-dihydro-3,4,9-triaza-cyclopenta[a]naphthalen-8-one (22 mg, 0.07 mmol), 3-(4-Ethyl-piperazin-1-yl)-5-trifluoromethyl-benzoic acid (24 mg, 0.08 mmol), HATU (30 mg, 0.08 mmol) and DIEA (27 mg, 0.21 mmol) in 0.5 mmol DMF is stirred at room temperature for 2 hours. The solvent is removed by rotary evaporation. The crude product is purified by reverse phase HPLC to give the title compound as white solid. 1H NMR 400 MHz (DMSO-d6) δ 12.19 (s, 1H), 10.32 (s, 1H), 9.71 (s, 1H), 8.54 (s, 1H), 8.01 (s, 1H), 7.72 (s, 1H), 7.66 (m, 2H), 7.58 (s, 1H), 7.50 (t, 1H, J=2.8 Hz), 7.45 (s, 1H), 7.23 (d, 1H, J=8.4), 7.04 (s, 1H), 4.06 (m, 2H), 3.99 (s, 3H), 3.55 (b, 2H), 3.15 (m, 2H), 3.06 (m, 4H), 2.09 (s, 3H), 1.20 (t, 3H, J=7.2). MS m/z 589.2 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07846923B2
Source datasetuspto-grants-2010_12
ORD IDord-8412f2da15134ad59e0cdc9a83d6a7d7
Source noteuspto-grants-2010_12