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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2039676Generated: November 2, 2026

Diisopropylethylamine → HCID 23633265, compound

https://huagongshe.com/reaction/2039676

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantTriphosgeneHCID 94429—
Reactant4-Amino-6-methoxypyrimidineHCID 735731—
Reactant4-(4-Amino-3-fluorophenoxy)-N-methylpyridine-2-carboxamideHCID 46835219—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
ProductHCID 23633265HCID 2363326524.2%

Reaction Conditions

Temperature70 °C

Reaction Steps

A solution of 6-amino-4-methoxypyrimidine (50.0 mg; 0.39 mmol), triphosgene (43.0 mg; 0.14 mmol) and diisopropylethylamine (60.7 mg; 0.47 mmol) in THF (2.0 mL) was heated at 70° C. for 4 h. A solution of 4-(4-amino-3-fluoro-phenoxy)-pyridine-2-carboxylic acid methylamide (102.3 mg; 0.39 mmol) in DMF (1.0 mL) was then added, and the reaction mixture was heated at 70° C. for another 8 h, then extracted between EtOAc and saturated aqueous NaHCO3. The organic layer was dried and evaporated to give a crude oil that was purified via HPLC to give the title compound (14 mg, 9%). 1H-NMR (CD3OD) δ 8.36 (s, 1H), 8.35 (s, 1H), 8.14 (t, J=8.8 Hz, 1H), 7.46 (d, J=2.4 Hz, 1H), 7.00-6.86 (m, 3H), 6.60 (s, 1H), 3.86 (s, 3H), 2.83 (s, 3H); LC-MS m/z 413 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08580798B2
Source datasetuspto-grants-2013_11
ORD IDord-e7406553d36f4630a33bb86f0ca3e831
Source noteuspto-grants-2013_11