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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1790678Generated: November 2, 2026

1-Pyrrolidineethanamine → 4-(2-{[4-ethylphenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-pyrrolidinylethyl)carboxamide

https://huagongshe.com/reaction/1790678

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-PyrrolidineethanamineHCID 1344—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
Reactant4-(2-{[4-Ethylpheyl]amino)-1-methylbenzimidazol-5-yloxy)pyridine-2-carboxylic acidHCID 22040464—
SolventTetrahydrofuranHCID 8028—
Product4-(2-{[4-ethylphenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-pyrrolidinylethyl)carboxamideHCID 131725838—

Reaction Steps

To 4-(2-{[4-ethylpheyl]amino)-1-methylbenzimidazol-5-yloxy)pyridine-2-carboxylic acid (1 eq) in tetrahydrofuran was added 2-pyrrolidinylethylamine (2 eq), HBTU (2 eq) and N,N-diisopropylethylamine (4 eq) and stir at ambient temperature for 16 h. The mixture was then concentrated and partitioned between ethyl acetate and water. The organic layer was concentrated and preparative chromatography yielded [4-(2-{[4-ethylphenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-pyrrolidinyl-ethyl)carboxamide MS: MH+=484.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07071216B2
Source datasetuspto-grants-2006_07
ORD IDord-6fb29f1c20dc42d685c70611cd0567a6
Source noteuspto-grants-2006_07