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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84650Generated: October 25, 2026

Ethanolamine → 2-(1-(2,4-difluorophenyl)-1H-1,2,4-triazol-5-yl)-N-(2-hydroxyethyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-9-carboxamide

https://huagongshe.com/reaction/84650

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
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—
Reactant2-[2-(2,4-difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-1-thia-benzo[e]azulene-9-carboxylic acidHCID 57900260—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product2-(1-(2,4-difluorophenyl)-1H-1,2,4-triazol-5-yl)-N-(2-hydroxyethyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-9-carboxamideHCID 57900164—

Reaction Steps

A mixture of 2-[2-(2,4-difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-1-thia-benzo[e]azulene-9-carboxylic acid (53 mg), HATU (61 mg) and diisopropylethylamine (0.028 mL) and ethanolamine was stirred in N,N-dimethylformamide (3 ml). The reaction mixture was stirred overnight, and then diluted with ethyl acetate, washed with water, dried (MgSO4) and the solvent removed in vacuo. Purification using flash chromatography yielded 398 (24 mg). NMR: (CDCl3): 2.30 (1H, t, br.), 3.05 (2H, t), 3.51-3.55 (2H, m), 3.7-3.75 (2H, m), 4.31 (2H, t), 6.40 (1H, br.), 6.80 (1H, s), 6.99 (1H, d), 7.05-7.12 (2H, m), 7.42-7.52 (2H, m), 7.90 (1H, s), 8.01 (1H, s). MS. ESI+510 (MH++MeCN)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846762B2
Source datasetuspto-grants-2014_09
ORD IDord-f1e7dc2a41d24b9489d87a6bbe091085
Source noteuspto-grants-2014_09