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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2266681Generated: November 3, 2026

Water → HCID 21110936, compound

https://huagongshe.com/reaction/2266681

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactanto-Xylyl bromideHCID 6992—
ReactantCesium carbonateHCID 10796—
ReactantHCID 58885805HCID 58885805—
SolventDimethylformamideHCID 6228—
ProductHCID 21110936HCID 2111093647.5%

Reaction Steps

To a mixture of (2R,6S)-4-[4-(6-Amino-5-hydroxy-pyridin-3-yl)-benzoyl]-2,6-dimethyl-piperazine-1-carboxylic acid tert-butyl ester (100 mg, 0.23 mmol) and 1-bromomethyl-2-methyl-benzene (47 mg, 0.25 mmol) in DMF (2 mL) was added 2 M Cs2CO3 (0.35 mL, 0.7 mmol) followed by water (0.5 mL). The mixture was stirred at room temperature overnight. LCMS showed the reaction was completed, DMF was removed, followed by addition of 4 N HCl in dioxane (2 mL) and the reaction was stirred at room temperature for 3 hr. The volatiles were removed followed by addition of methanol. This solution was purified by prep-HPLC to afford {4-[6-Amino-5-(2-methyl-benzyloxy)-pyridin-3-yl]-phenyl}-(3,5-dimethyl-piperazin-1-yl)-methanone (47 mg, yield 46.6%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07858643B2
Source datasetuspto-grants-2010_12
ORD IDord-e236a6b7f73643739d1c1894423e4362
Source noteuspto-grants-2010_12