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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79517Generated: October 29, 2026

Trifluoroacetic acid → HCID 44198750, compound

https://huagongshe.com/reaction/79517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant(R)-Methyl 4-(4-(2-(tert-butoxycarbonylamino)-3-(4-chlorophenyl)propanoyl)piperazin-1-yl)-1H-pyrrolo [2,3-b]pyridine-5-carboxylateHCID 68765221—
SolventDichloromethaneHCID 6344—
ProductHCID 44198750HCID 4419875074%

Reaction Steps

(R)-Methyl 4-(4-(2-(tert-butoxycarbonylamino)-3-(4-chlorophenyl)propanoyl)piperazin-1-yl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate (0.025 g, 0.046 mmol) was placed in DCM (3 mL) at room temperature. TFA (0.3 mL) was then added. The reaction was stirred at room temperature for 1 hour and then concentrated. The resulting residue was dissolved in minimal DCM and added to a stirring solution of 1M HCl in ether. The resulting solid (R)-methyl 4-(4-(2-amino-3-(4-chlorophenyl)propanoyl)piperazin-1-yl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate (0.015 g, 74% yield) was collected and dried as the dihydrochloride salt. MS ESI (+) m/z 442 detected.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841304B2
Source datasetuspto-grants-2014_09
ORD IDord-833cc291fc974a7985c55c420f2d3778
Source noteuspto-grants-2014_09