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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1477746Generated: November 4, 2026

Diisopropylethylamine → HCID 90422300, compound

https://huagongshe.com/reaction/1477746

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
ReactantMethyl (2S)-azetidine-2-carboxylate--hydrogen chloride (1/1)HCID 13246224—
Reactant5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acidHCID 53260165—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 90422300HCID 90422300—

Reaction Steps

TBTU (4.93 g, 15.4 mmol) was added to a rt solution of 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid A-1-2 (2.40 mg, 11.8 mmol) and DIPEA (8.09 mL, 47.2 mmol) in DCM (24 mL) and after stirring for 15 min, (S)-methyl azetidine-2-carboxylate HCl (2.03 g, 13 mmol) was added and the resulting mixture was stirred at rt for 1 h. The rxn mixture was diluted with DCM and water, the layers were separated and the aq. layer was extracted with DCM (1×). The combined org. extracts were washed with brine, dried (MgSO4), filtered and concentrated in vacuo. The crude was purified by FC (EtOAc/hept 5:1) to obtain the title compound A-2-1 as a white solid. LC-MS A: tR=0.70 min; [M+H]+=301.18.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09403813B2
Source datasetuspto-grants-2016_08
ORD IDord-516c08ac69c249d6b6b149a002fc5337
Source noteuspto-grants-2016_08