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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20559Generated: October 27, 2026

Diisopropylethylamine → 3-[4-(Azetidin-1-ylcarbonyl)phenoxy]-5-[(1S)-2-hydroxy-1-methylethoxy]-N-(5-methylpyrazin-2-yl)benzamide

https://huagongshe.com/reaction/20559

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—
ReactantAzetidine hydrochlorideHCID 12308726—
Reactant4-(3-[(1S)-2-hydroxy-1-methylethoxy]-5-{[(5-methylpyrazin-2-yl)amino]carbonyl}phenoxy)benzoic acidHCID 59346913—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product3-[4-(Azetidin-1-ylcarbonyl)phenoxy]-5-[(1S)-2-hydroxy-1-methylethoxy]-N-(5-methylpyrazin-2-yl)benzamideHCID 1153990345.7%

Reaction Steps

DIPEA (0.4 mL, 2.08 mmol) was added to a suspension of 4-(3-[(1S)-2-hydroxy-1-methylethoxy]-5-{[(5-methylpyrazin-2-yl)amino]carbonyl}phenoxy)benzoic acid (110 mg, 0.26 mmol), HATU (210 mg, 0.55 mmol) and azetidine hydrochloride (49 mg, 0.52 mmol) in DMF (3 mL) and the mixture stirred at RT for 24 hours. Water (30 mL) was added and the mixture extracted with ethyl acetate (3×15 mL). The combined organic extracts were washed with brine, dried (MgSO4), and evaporated to a residue which was chromatographed on silica, eluting with 5% methanol in ethyl acetate, to give the desired compound (55 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745475B2
Source datasetuspto-grants-2010_06
ORD IDord-ce28fb4cf5104a12903315a39263e4f3
Source noteuspto-grants-2010_06