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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898350Generated: October 26, 2026

Hydrochloric Acid → HCID 178496986, compound

https://huagongshe.com/reaction/1898350

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl cyclopropanecarboximidateHCID 14518434—
ReactantHCID 178496989HCID 178496989—
SolventDichloromethaneHCID 6344—
ProductHCID 178496986HCID 17849698634.2%

Reaction Conditions

Temperature2.5 °C

Reaction Steps

Under N2 atmosphere to a cold solution of methyl 7-amino-2-[(2,6-dichlorophenyl)amino]-6-hydroxy-1H-benzimidazole-5-carboxylate (0.400 g, 1.05 mmol) in DCM (25 mL) was added HCl salt of ethyl cyclopropanecarboximidate (Intermediate-57, 0.234 g, 1.57 mmol) at 0° C. The reaction mass was stirred at 0-5° C. for 1 h and at RT for 24 h. The obtained crude was purified by column chromatography on neutral alumina eluting with 1.0-2.0% MeOH:DCM to afford 0.150 g of the desired product. (DMSO-d6): δ 1.06-1.14 (m, 4H), 3.88 (s, 3H), 2.3 (m, 1H), 7.41 (s, 1H), 7.62 (d, J=7.8 Hz, 2H), 7.69 (s, 1H), 9.47 (s, 1H), 11.55 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08519149B2
Source datasetuspto-grants-2013_08
ORD IDord-0e6ef0e6bec647c4887d81d690a27877
Source noteuspto-grants-2013_08