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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 419203Generated: October 25, 2026

Diisopropylethylamine → 4-Chloro-N-[5-chloro-2-((R)-3-methyl-morpholine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

https://huagongshe.com/reaction/419203

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant(R)-3-MethylmorpholineHCID 641498—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant5-Chloro-3-(4-chloro-3-trifluoromethyl benzenesulfonylamino)-pyridine-2-carboxylic acidHCID 57942077—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventAcetonitrileHCID 6342—
Product4-Chloro-N-[5-chloro-2-((R)-3-methyl-morpholine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamideHCID 57942619—

Reaction Steps

A mixture of 5-chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid (63 mg, 0.152 mmol), (R)-3-methyl-morpholine (100 mg, 1.0 mmol), DIEA (0.132 mL, 0.76 mmol) and HATU (86 mg, 0.23 mmol) in 1.5 mL of DMF was stirred at room temperature for 4 hours. The mixture was directly applied for preparative HPLC (20-80% acetonitrile in water) to afford the title compound as a white solid: 1H NMR: (CDCl3, ppm) δ 8.24 (d, 1H), 8.11 (m, 1H), 8.02 (m, 1H), 7.93 (m, 1H), 7.63 (d, 1H), 4.60 (m, 1H), 4.29 (m, 1H), 3.77 (m, 2H), 3.59 (m, 1H), 3.38 (m, 2H), 1.28 (m, 3H); MS: (M+H)/z=498.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093247B2
Source datasetuspto-grants-2012_01
ORD IDord-e5f0fff7d87f49c38729812d5cc5d4f8
Source noteuspto-grants-2012_01