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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 911095Generated: October 30, 2026

Sodium Hydroxide → HCID 24994974, compound

https://huagongshe.com/reaction/911095

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 57899006HCID 57899006—
SolventEthanolHCID 702—
ProductHCID 24994974HCID 2499497425%

Reaction Conditions

Temperature60 °C

Reaction Steps

Ethyl 5-(2-(3-(1-(tert-butoxycarbonyl)piperidin-4-yl)-1,2,4-thiadiazol-5-ylamino)-5-bromopyridin-4-yloxy)-4,6-dimethylnicotinate (0.050 g, 0.08 mmol) was dissolved in EtOH (2 mL). NaOH (1N in H2O, 0.28 ml, 0.28 mmol) was added. The reaction stirred at 60° C. for 1 hour. The solution was cooled and concentrated. The material was acidified with saturated NH4Cl solution and extracted with dichloromethane. The organic layer was washed with water, dried and concentrated to give 5-(2-(3-(1-(tert-butoxycarbonyl)piperidin-4-yl)-1,2,4-thiadiazol-5-ylamino)-5-bromopyridin-4-yloxy)-4,6-dimethylnicotinic acid (0.012 g, 25% yield) as an off white solid. 1H NMR (400 MHz, DMSO-d6) δ 1.39 (s, 9H), 1.52-1.55 (m, 2H), 1.89-1.93 (m, 2H), 2.34 (s, 6H), 2.84-2.93 (m, 3H), 3.90-3.94 (m, 2H), 6.20 (s, 1H), 8.62 (s, 1H), 8.89 (s, 1H), 11.69 (s, 1H), 13.09 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022222B2
Source datasetuspto-grants-2011_09
ORD IDord-797ef908fb0d4e69bd6e3e971ee3581b
Source noteuspto-grants-2011_09