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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1484178Generated: October 31, 2026

4-Methylmorpholine → HCID 77845375, compound

https://huagongshe.com/reaction/1484178

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-MethylmorpholineHCID 7972—
ReactantSodium HydroxideHCID 14798—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
ReactantMethyl 5-aminopyridine-2-carboxylateHCID 12457877—
ReactantHCID 90314056HCID 90314056—
SolventMethanolHCID 887—
SolventDimethylformamideHCID 6228—
ProductHCID 77845375HCID 7784537533%

Reaction Conditions

Temperature40 °C

Reaction Steps

A solution of methyl 5-aminopicolinate (15.2 mg, 0.1 mmol), 2-(4-fluorophenoxy)-4-(trifluoromethyl)benzoic acid (33.0 mg, 0.12 mmol), N-methylmorpholine (22 μL, 0.2 mmol) and HATU (45.6 mg, 0.12 mmol) in DMF (0.4 mL) was stirred at 40° C. for 16 hours. Aqueous NaOH (166.7 μL, 3M) and methanol (0.2 mL) were added and the mixture was stirred at 40° C. for 1 hour. The reaction mixture was diluted with MeOH, filtered and purification by reverse phase HPLC using a gradient of ACN in Water (1-99%) and HCl as a modifier to give 5-(2-(4-fluorophenoxy)-4-(trifluoromethyl)benzamido)picolinic acid (56) (9.95 mg, 33%). ESI-MS m/z calc. 420.07. found 421.29 (M+1)+; Retention time: 1.60 minutes (3 minutes run). 1H NMR (400 MHz, DMSO) δ 13.15-12.96 (m, 1H), 11.09 (s, 1H), 8.90 (s, 1H), 8.28 (d, J=8.0 Hz, 1H), 8.07 (d, J=8.8 Hz, 1H), 7.92 (d, J=7.8 Hz, 1H), 7.66 (d, J=7.9 Hz, 1H), 7.36-7.13 (m, 5H) ppm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09421196B2
Source datasetuspto-grants-2016_08
ORD IDord-95bcd3ff128545cfbbe56fe17e520852
Source noteuspto-grants-2016_08