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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1910244Generated: October 26, 2026

Diisopropylethylamine → 6,7-dimethoxy-isoquinoline-3-carboxylic acid [5-ethoxy-7-(1H-imidazol-2-ylcarbamoyl)-1H-benzoimidazol-2-yl]-amide

https://huagongshe.com/reaction/1910244

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantBis(2-amino-1H-imidazole) sulphateHCID 135136—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
Reactant2-[(6,7-dimethoxy-isoquinoline-3-carbonyl)-amino]-6-ethoxy-1H-benzoimidazole-4-carboxylic acidHCID 66940830—
SolventDimethylformamideHCID 6228—
SolventSodium chloride; waterHCID 57417360—
Product6,7-dimethoxy-isoquinoline-3-carboxylic acid [5-ethoxy-7-(1H-imidazol-2-ylcarbamoyl)-1H-benzoimidazol-2-yl]-amideHCID 17846681547.9%

Reaction Steps

100 mg (0.25 mmol) of 2-[(6,7-dimethoxy-isoquinoline-3-carbonyl)-amino]-6-ethoxy-1H-benzoimidazole-4-carboxylic acid and 200 mg (0.53 mmol) of HBTU were dissolved in 1.0 mL of DMF and 0.5 mL of DIEA and treated with 200 mg (1.5 mmol) of 2-aminoimidazole sulfate as described in general procedure A. Upon completion, the reaction was diluted with brine. The resulting solid was filtered, washed with water and EtOAc, and dried under vacuum to produce 60 mg (47%) of 6,7-dimethoxy-isoquinoline-3-carboxylic acid [5-ethoxy-7-(1H-imidazol-2-ylcarbamoyl)-1H-benzoimidazol-2-yl]-amide. LCMS: 502 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598353B2
Source datasetuspto-grants-2013_12
ORD IDord-873ab1accd894e268e6a6c2def3fe919
Source noteuspto-grants-2013_12