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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 577585Generated: October 31, 2026

Trifluoroacetic acid → Methyl 5-(2-aminoethoxy)-3-methyl-2-(propan-2-yloxy)pyridine-4-carboxylate

https://huagongshe.com/reaction/577585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantMethyl 5-{2-[(tert-butoxycarbonyl)amino]ethoxy}-3-methyl-2-(propan-2-yloxy)pyridine-4-carboxylateHCID 86723811—
SolventDichloromethaneHCID 6344—
ProductMethyl 5-(2-aminoethoxy)-3-methyl-2-(propan-2-yloxy)pyridine-4-carboxylateHCID 86723813260.9%

Reaction Steps

To a solution of methyl 5-{2-[(tert-butoxycarbonyl)amino]ethoxy}-3-methyl-2-(propan-2-yloxy)pyridine-4-carboxylate (131d, 0.74 g, 2.0 mmol) in dry CH2Cl2 (20 mL) was added TFA (5 mL) at 5° C. The mixture was stirred at room temperature for 14 hours. The reaction mixture was concentrated under vacuum to give methyl 5-(2-aminoethoxy)-3-methyl-2-(propan-2-yloxy)pyridine-4-carboxylate (131e, 1.4 g) as brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040515B2
Source datasetuspto-grants-2015_05
ORD IDord-4889134a02f141f0ac18f1d736eec5fc
Source noteuspto-grants-2015_05