Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 333177Generated: October 30, 2026

Hydrochloric Acid → 4-{5-[4-(piperazine-1-carbonyl)-phenyl]-1H-pyrrolo[2,3-b]pyridin-3-yl}-benzamide, hydrochloride salt

https://huagongshe.com/reaction/333177

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-{4-[3-(4-carbamoyl-phenyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-benzoyl}-piperazine-1-carboxylic acid tert-butyl esterHCID 66779642—
SolventMethanolHCID 887—
Solvent1,4-DioxaneHCID 31275—
Product4-{5-[4-(piperazine-1-carbonyl)-phenyl]-1H-pyrrolo[2,3-b]pyridin-3-yl}-benzamide, hydrochloride saltHCID 131731913116%

Reaction Steps

A solution of 4-{4-[3-(4-carbamoyl-phenyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-benzoyl}-piperazine-1-carboxylic acid tert-butyl ester (100 mg, 0.19 mmol) in MeOH (3 ml) was treated with 4 N HCl in dioxane (2.5 ml) and stirred at room temperature for 1 hr. The mixture was evaporated, taken up in MeOH and evaporated again. This was repeated twice to give 102 mg (116%) of the title compound. MS ESI (m/z): MS ESI (m/z): 426.4 (M+1)+, calc. 425.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08877772B2
Source datasetuspto-grants-2014_11
ORD IDord-8c7ed784f4e24eed97dba7a79a83d556
Source noteuspto-grants-2014_11