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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 466715Generated: October 30, 2026

Water → HCID 178437446, compound

https://huagongshe.com/reaction/466715

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSulfuric AcidHCID 1118—
ReactantAmmonium HydroxideHCID 14923—
ReactantHCID 178437440HCID 178437440—
SolventMethanolHCID 887—
ProductHCID 178437446HCID 178437446—

Reaction Conditions

Temperature100 °C

Reaction Steps

To neat 5-Cyano-2-ethyl-7-methyl-3-(2'-(tetrazol-5-yl)biphen-4-yl)methyl-3H-imidazo[4,5-b]pyridine (20 mg) at RT was added H2SO4 (0.5 mL) and water (0.25 mL). The mixture was heated to 100° C. for 3 hours, cooled to 0° C., then made basic by the addition of NH4OH. After adding methanol (5 mL), the mixture was filtered, concentrated, and purified (SiO2, 60:40:1 CH2Cl2 --CH3OH--NH4OH) to give 17 mg of the title compound as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05157026
Source datasetuspto-grants-1992_10
ORD IDord-3b6c1126b1654efd9cd67de3bdb3a858
Source noteuspto-grants-1992_10