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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1776741Generated: November 1, 2026

Hydrochloric Acid → HCID 86282744, compound

https://huagongshe.com/reaction/1776741

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
ReactantTetrahydrofuranHCID 8028—
ReactantHCID 90414705HCID 90414705—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 86282744HCID 86282744—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a 20 mL vial were added ethyl 1-{[1-(3-bromobenzyl)-5-(quinolin-2-ylmethoxy)-1H-benzimidazol-2-yl]methyl}cyclopentanecarboxylate (57 mg, 0.09 mmol), THF (1 mL) and MeOH (1 mL) followed by LiOH (1 mL, 1 M). The reaction mixture was capped and heated to 80° C. for 3 h. The mixture was then cooled to RT, water (5 mL) was added to the mixture and the pH was adjusted to ˜4 using 1 M HCl. To this mixture was added DCM (5 mL) and stirred for 1 h at RT. The organic layer was separated and the aqueous layer was further extracted with DCM. The combined organics were dried, filtered and concentrated to dryness. The residue was then purified by FCC to provide the title compound. MS (ESI): mass calcd. for C31H28BrN3O3, 569.13; m/z found, 570.1 [M+H]+. 1H NMR (400 MHz, CDCl3) δ 8.20 (d, J=8.6, 1H), 8.11 (d, J=8.3, 1H), 7.83 (d, J=8.3, 1H), 7.77-7.72 (m, 1H), 7.69 (d, J=8.6, 1H) 7.58-7.53 (m, 1H), 7.45 (d, J=7.8, 1H), 7.36-7.34 (m, 1H), 7.23 (s, 1H), 7.21-7.15 (m, 2H), 7.11-7.06 (m, 1H), 6.90 (d, J=7.6, 1H), 5.44 (s, 2H), 5.28 (s, 2H), 3.04 (s, 2H), 2.44-2.34 (m, 2H), 1.77-1.66 (m, 2H), 1.50-1.41 (m, 4H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09265770B2
Source datasetuspto-grants-2016_02
ORD IDord-cb050dd5cbd048649d40db3c451ed084
Source noteuspto-grants-2016_02