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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2070269Generated: October 27, 2026

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

https://huagongshe.com/reaction/2070269

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—
Reactant2-{[4-Ethylphenylamino)-1-methylbenzimidazol-5-yloxy)pyridine-2-carboxylic acidHCID 86592203—
SolventTetrahydrofuranHCID 8028—
Product4-(2-{[4-ethylphenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-pyrrolidinylethyl)carboxamideHCID 131725838—

Reaction Steps

To 4-(2-{[4-ethylpheylamino)-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 numberUS08299108B2
Source datasetuspto-grants-2012_10
ORD IDord-67c9cc0f85ff4f5593a2f63d4b280a80
Source noteuspto-grants-2012_10