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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 911852Generated: October 26, 2026

Ethyl Acetate → N-(5-Bromo-3-phenoxypyridin-2-yl)thiazolo[5,4-b]pyridin-2-amine

https://huagongshe.com/reaction/911852

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant2-Chloro-3-isothiocyanatopyridineHCID 12868088—
Reactant5-Bromo-3-phenoxypyridin-2-amineHCID 45926140—
SolventDimethylformamideHCID 6228—
ProductN-(5-Bromo-3-phenoxypyridin-2-yl)thiazolo[5,4-b]pyridin-2-amineHCID 5774290277.2%

Reaction Conditions

Temperature120 °C

Reaction Steps

Heated a mixture of 2-chloro-3-isothiocyanatopyridine (0.257 g, 1.51 mmol) and 5-bromo-3-phenoxypyridin-2-amine (0.400 g, 1.51 mmol) in DMF (4 mL) at 80° C. for 3 hours. Heated at 120° C. overnight. Cooled, partitioned between 2N NaOH and ethyl acetate. Washed the organic layer twice with water, brine, dried, and concentrated. Subjected the residue to Biotage, eluting with 3:1 hexane:ethyl acetate to afford the title compound (0.465 g, 77.2% yield) as a white powder. 1H NMR (d6-DMSO) δ 7.15 (d, 2H), 7.23 (t, 1H), 7.40-7.50 (m, 4H), 7.92 (s, 1H), 8.34 (s, 1H), 8.37 (d, 1H), 11.63 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022223B2
Source datasetuspto-grants-2011_09
ORD IDord-5db1bba0487248e3a2452d32ff20e778
Source noteuspto-grants-2011_09