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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1170524Generated: October 31, 2026

Triethylamine → HCID 45739920, compound

https://huagongshe.com/reaction/1170524

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantBenzo-1,3-dioxole-5-methylamineHCID 75799—
Reactant(2R)-1-[(tert-butoxy)carbonyl]pyrrolidine-2-carboxylic acidHCID 688022—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 45739920HCID 4573992082.5%

Reaction Steps

Boc-D-Pro-OH (209 mg, 0.970 mmol) was dissolved in DMF (4 mL), followed by addition of the HBTU (552 mg, 1.46 mmol) and Triethylamine (270 μL). The solution was stirred at room temperature for 30 minutes prior to the addition of piperonylamine (121 μL, 0.970 mmol). The reaction mixture stirred at rt for 16 h then the solution was transferred to a separatory funnel containing DCM (50 mL). The organic layer was washed with NaHCO3 (2×50 mL, sat. aq.) and dried over Na2SO4. The solution was concentrated and purified by prep LCMS to afford 278.0 mg (82.5%) of 2-[(benzo[1,3]dioxol-5-ylmethyl)-carbamoyl]-pyrrolidine-1-carboxylic acid tert-butyl ester. [M+H]+ 349.09.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07825256B2
Source datasetuspto-grants-2010_11
ORD IDord-b344dd2db00e4e54bb5f2f341e6142cd
Source noteuspto-grants-2010_11