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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 219183Generated: October 29, 2026

Trifluoroacetic acid → HCID 57691248, compound

https://huagongshe.com/reaction/219183

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTert-butyl (2-chloro-4-(3-((7-methoxy-1,5-naphthyridin-4-ylamino)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)methylcarbamateHCID 67967034—
CatalystSodium HydroxideHCID 14798—
SolventDichloromethaneHCID 6344—
SolventAcetonitrile--water (1/1)HCID 18373917—
ProductHCID 57691248HCID 57691248—

Reaction Conditions

Temperature23 °C

Reaction Steps

To a stirring solution of tert-butyl (2-chloro-4-(3-((7-methoxy-1,5-naphthyridin-4-ylamino)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)methylcarbamate (70 mg, 128 μmol) in DCM (2 mL) was added TFA (2 mL). Reaction solution stirred for 30 min at 23° C. Solvents then removed under reduced pressure and residue purified on prep-HPLC using a water/ACN (0.1% TFA) gradient. Resulting solid was dissolved in 1:1 ACN/water (1 mL) and pH adjusted to 10 with 1M NaOH (approx 10 drops). Resulting solid collected by filtration and washed with water (5 mL). MS (ESI pos. ion) m/z: 447 (MH+). Calc'd exact mass for C22H19ClN8O: 446.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198448B2
Source datasetuspto-grants-2012_06
ORD IDord-22eded96f7334a1488d3585ae24f3e4f
Source noteuspto-grants-2012_06