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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 873605Generated: October 31, 2026

Methanol → HCID 86702119, compound

https://huagongshe.com/reaction/873605

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 86702120HCID 86702120—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86702119HCID 86702119—

Reaction Conditions

Temperature60 °C

Reaction Steps

Ethyl 1-methyl-5-(4-(1-(pyridazin-3-yl)azetidine-3-carboxamido)phenyl)-1H-pyrazole-3-carboxylate (368 mg, 0.905 mmol) was taken up in tetrahydrofuran (3.38 mL), and methanol (3.38 mL) then 1N aqueous lithium hydroxide (1.35 mL, 1.350 mmol) was added. The mixture was heated at 60° C. for 2 hours. The mixture was concentrated to dryness, suspended in water and treated with 1N aqueous HCl to pH 2. The solution was extracted with ethyl acetate and the organic layers were dried with sodium sulfate, filtered, and concentrated to give a colorless syrup that solidified upon standing. This solid was triturated with ether and collected by filtration to give the title compound. 1H NMR (400 MHz, DMSO-d6) δ ppm 12.67 (s, 1H), 10.32 (bs, 1H), 8.60-8.55 (m, 1H), 7.77 (d, J=8.4 Hz, 2H), 7.54 (d, J=8.4 Hz, 2H), 7.42 (dd, J=9.0, 4.5 Hz, 1H), 6.89 (d, J=8.9 Hz, 1H), 6.80 (s, 1H), 4.34-4.13 (m, 4 H), 3.91 (s, 3 H), 3.83-3.74 (m, 1H); MS (ESI(+)) m/e 379 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975398B2
Source datasetuspto-grants-2015_03
ORD IDord-5988cd58e55a4631b1cf6e0a59767ee0
Source noteuspto-grants-2015_03