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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2390875Generated: October 29, 2026

Diisopropylethylamine → 4-benzyloxy-N-[3-tert-butyl-2-methoxy-5-(2-methoxy-pyridin-3-yl)-phenyl]-2-fluoro-benzamide

https://huagongshe.com/reaction/2390875

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant4-(Benzyloxy)-3-fluorobenzoic acidHCID 18757507—
Reactant3-Tert-butyl-2-methoxy-5-(2-methoxypyridin-3-yl)phenylamineHCID 67069882—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product4-benzyloxy-N-[3-tert-butyl-2-methoxy-5-(2-methoxy-pyridin-3-yl)-phenyl]-2-fluoro-benzamideHCID 6706991385%

Reaction Steps

step 1—A solution of 100 (100 mg, 0.349 mmol, 4-benzyloxy-3-fluoro-benzoic acid (86 mg, 0.349 mmol), HATU (146 mg, 0.384 mmol, DIPEA (0.122 mL, 0.698 mmol), and DMF (3 mL) is stirred at 50° under Ar overnight. The reaction was cooled, diluted with H2O and extracted with EtOAc. The combined extracts were washed with H2O, dried (MgSO4), filtered and concentrated in vacuo. The crude product was purified by SiO2 eluting with 20% EtOAc/hexane to afford 0.125 g (85%) of 4-benzyloxy-N-[3-tert-butyl-2-methoxy-5-(2-methoxy-pyridin-3-yl)-phenyl]-2-fluoro-benzamide (322) which could be recrystallized from EtOAc.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08273773B2
Source datasetuspto-grants-2012_09
ORD IDord-320bc3aaa98b474dae8c6d199fa38c53
Source noteuspto-grants-2012_09