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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 548741Generated: October 29, 2026

Pyridine → HCID 57663212, compound

https://huagongshe.com/reaction/548741

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactanttert-Butyl 3-amino-1H-pyrazole-1-carboxylateHCID 51358380—
ReactantHCID 57663190HCID 57663190—
SolventDichloromethaneHCID 6344—
ProductHCID 57663212HCID 5766321252.5%

Reaction Steps

1-Chloro-N,N-2-trimethylpropenylamine (0.09 mL, 0.37 mmol) was added to a solution of 3-[(9-chloro-4-methyl-5-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepin-8-yl)oxy]-5-[(3S)-tetrahydrofuran-3-yloxy]benzoic acid (145 mg, 0.34 mmol) in DCM (5 mL) and the reaction stirred at RT for 30-40 minutes. Pyridine (0.055 mL, 0.67 mmol) and 1,1-dimethylethyl 3-amino-1H-pyrazole-1-carboxylate (123 mg, 0.67 mmol) were added and the reaction stirred for 2 hours at RT. The reaction mixture was evaporated in vacuo and water (20 mL) added. The mixture was extracted with ethyl acetate (3×20 mL), washed with 1N hydrochloric acid (20 mL), a saturated solution of sodium hydrogen carbonate (20 mL), brine (20 mL), dried (MgSO4) and evaporated in vacuo. The crude product was chromatographed on silica, eluting with a gradient of 0-5% methanol in DCM, to give the desired compound as a pale yellow oil (107 mg). m/z 611 (M−H)−

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07943607B2
Source datasetuspto-grants-2011_05
ORD IDord-e98d7e2f70794db78a9edc08ea72fcb2
Source noteuspto-grants-2011_05