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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 379995Generated: October 29, 2026

Ethanol → HCID 20692745, compound

https://huagongshe.com/reaction/379995

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium CarbonateHCID 10340—
Reactant3-BromophenylureaHCID 18129—
Reactant(1S,2R)-4-[2-(tert-butyldimethylsilanyloxy)-1-methyl-4-pyridin-3-ylbutoxy]benzeneboronic acidHCID 54020751—
CatalystHCID 178418397HCID 178418397—
SolventTolueneHCID 1140—
ProductHCID 20692745HCID 2069274561.5%

Reaction Conditions

Temperature120 °C

Reaction Steps

Prepared according to the method described in Example 12b) from 3-bromophenylurea (0.215 g), ethanol (1 ml), toluene (4 ml), 2M aqueous sodium carbonate (0.5 ml), (1S,2R)-4-[2-(tert-butyldimethylsilanyloxy)-1-methyl-4-pyridin-3-ylbutoxy]benzeneboronic acid (0.2 g, Example 11)), and tetrakis(triphenylphosphine)palladium (0) (0.02 g) with heating at 120° C. for 4 hours. After work-up, the residue was purified by normal-phase HPLC eluting a gradient of 0-25% ethanol in dichloromethane to give the title compound as a solid (0.116 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06300352B1
Source datasetuspto-grants-2001_10
ORD IDord-0018d3413a5842148eec4e5eced091af
Source noteuspto-grants-2001_10