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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 931228Generated: October 31, 2026

Acetic Acid → HCID 178419984, compound

https://huagongshe.com/reaction/931228

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantTriethylamineHCID 8471—
Reactant(1-(5,6-Diaminopyridin-2-yl)piperidin-3-yl)(pyrrolidin-1-yl)methanone dihydrochlorideHCID 89853790—
ReactantEthyl 2-cyclopropylpyrimidine-4-carbimidateHCID 89854162—
SolventEthanolHCID 702—
ProductHCID 178419984HCID 178419984—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of (1-(5,6-diaminopyridin-2-yl)piperidin-3-yl)(pyrrolidin-1-yl)methanone dihydrochloride (18 mg, 0.06 mmol) and acetic acid (55 μL, 0.96 mmol) in ethanol (0.5 mL) was added triethylamine (17 μL, 0.12 mmol) followed by ethyl 2-cyclopropylpyrimidine-4-carbimidate (11.5 mg, 0.06 mmol) dissolved in ethanol (0.5 mL). The reaction mixture was heated to 70° C. for 1.25 h. The solvent was removed under reduced pressure. The residue was suspended in ethyl acetate and the undissolved solids were filtered off. The filtrate was washed with a saturated aqueous solution of ammonium chloride, washed with a saturated aqueous solution of sodium bicarbonate, and washed with brine. The organics were dried over magnesium sulfate, filtered and concentrated under reduced pressure. The crude material was purified via HPLC to afford the title compound. MS (ESI+) (M+H) 427.1; HPLC retention time 2.0183 (Method A).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296745B2
Source datasetuspto-grants-2016_03
ORD IDord-a22db86a9f0c41c993bf0a509ed7154a
Source noteuspto-grants-2016_03