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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1845060Generated: November 3, 2026

Diisopropylethylamine → 6-ethoxy-2-[(isoquinoline-3-carbonyl)-amino]-3H-benzoimidazole-4-carboxylic acid ethyl ester

https://huagongshe.com/reaction/1845060

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantIsoquinoline-3-carboxylic acidHCID 124656—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
ReactantHCID 66940226HCID 66940226—
SolventDimethylformamideHCID 6228—
SolventSodium chloride; waterHCID 57417360—
Product6-ethoxy-2-[(isoquinoline-3-carbonyl)-amino]-3H-benzoimidazole-4-carboxylic acid ethyl esterHCID 17846931062%

Reaction Steps

600 mg (3.0 mmol) of isoquinoline-3-carboxylic acid and 1200 mg (3.1 mmol) of HBTU were dissolved in 3.0 mL of DMF and 0.6 mL of DIEA and reacted with 500 mg (2.0 mmol) of 2-amino-6-ethoxy-1H-benzoimidazole-4-carboxylic acid ethyl ester 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 500 mg (62%) of 6-ethoxy-2-[(isoquinoline-3-carbonyl)-amino]-3H-benzoimidazole-4-carboxylic acid ethyl ester. LCMS: 406 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946259B2
Source datasetuspto-grants-2015_02
ORD IDord-fc452b2a58354f1db3e7f73acb1bba2b
Source noteuspto-grants-2015_02