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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898392Generated: October 26, 2026

Diisopropylethylamine → 2-[(2-Chloro-6-methylphenyl)amino]-7,7-dimethyl-N-[5-(trifluoromethyl)pyridin-2-yl]-7,8-dihydro-1H-furo[3,2-e]benzimidazole-5-carboxamide

https://huagongshe.com/reaction/1898392

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant(1-Cyano-2-ethoxy-2-oxoethylidenaminooxy)dimethylamino-morpholino-carbenium hexafluorophosphateHCID 75951468—
ReactantHCID 178425067HCID 178425067—
ReactantHCID 178507581HCID 178507581—
CatalystIronHCID 23925—
SolventAcetic AcidHCID 176—
Product2-[(2-Chloro-6-methylphenyl)amino]-7,7-dimethyl-N-[5-(trifluoromethyl)pyridin-2-yl]-7,8-dihydro-1H-furo[3,2-e]benzimidazole-5-carboxamideHCID 17842505228.9%

Reaction Steps

The title compound was prepared by following the procedure described for Example-121 using 2-[(2-chloro-6-methylphenyl)amino]-7,7-dimethyl-7,8-dihydro-1H-furo[3,2-e]benzimidazole-5-carboxylic acid (Intermediate-35, 0.200 g, 0.537 mmol), COMU (0.873 g, 1.34 mmol), DIPEA (0.173 g, 1.34 mmol) and 2-amino-5-(trifluoromethyl)pyridine 1-oxide (Intermediate-41, 0.105 g, 0.591 mmol), iron powder (0.050 g) and acetic acid (5.0 mL) to afford 0.080 g of the desired product. 1HNMR (DMSO-d6): δ 1.57 (s, 6H), 2.24 (s, 3H), 3.13 (s, 2H), 7.25-7.33 (m, 2H), 7.42 (d, J=7.5 Hz, 1H), 7.56 (s, 1H), 8.22 (d, J=8.4 Hz, 1H), 8.49 (d, J=8.7 Hz, 1H), 8.75 (s, 1H), 9.16 (m, 1H), 10.49 (s, 1H), 10.99 (s, 1H); MS [M]+: 516.06.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08519149B2
Source datasetuspto-grants-2013_08
ORD IDord-932f080222ae447a8b376d0b7d9053b7
Source noteuspto-grants-2013_08