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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1645347Generated: October 25, 2026

2,2-Dimethylsuccinic anhydride → 4-(4-{4-[(1-Ethyl-4-methyl-4H-indole-2-carbonyl)-amino]-phenyl}-piperidin-1-yl)-2,2-dimethyl-4-oxo-butyric acid

https://huagongshe.com/reaction/1645347

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,2-Dimethylsuccinic anhydrideHCID 87067—
Reactant4-(4-{5-[(4-Chloro-benzo[b]thiophene-2-carbonyl)-amino]-pyridin-2-yl}-piperazin-1-yl)-2,2-dimethyl-4-oxo-butyric acidHCID 46207828—
Reactant4-(4-{4-[(1-ethyl-4-methyl-1H-indole-2-carbonyl)-amino]-phenyl}-piperidin-1-yl)-2,2-dimethyl-4-oxo-butyric acidHCID 59365134—
Reactant1-ethyl-4-methyl-1H-indole-2-carboxylic acid (4-piperidin-4-yl-phenyl)-amideHCID 66772392—
Product4-(4-{4-[(1-Ethyl-4-methyl-4H-indole-2-carbonyl)-amino]-phenyl}-piperidin-1-yl)-2,2-dimethyl-4-oxo-butyric acidHCID 66772377—

Reaction Steps

With a method similar to that used for the preparation of 4-(4-{5-[(4-chloro-benzo[b]thiophene-2-carbonyl)-amino]-pyridin-2-yl}-piperazin-1-yl)-2,2-dimethyl-4-oxo-butyric acid, 4-(4-{4-[(1-ethyl-4-methyl-1H-indole-2-carbonyl)-amino]-phenyl}-piperidin-1-yl)-2,2-dimethyl-4-oxo-butyric acid was prepared from 1-ethyl-4-methyl-1H-indole-2-carboxylic acid (4-piperidin-4-yl-phenyl)-amide and 2,2-dimethylsuccinic anhydride. LCMS for C29H35N3O4 calcd. (m/e) 489, observed 490 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08124766B2
Source datasetuspto-grants-2012_02
ORD IDord-b85c8fdf67f94dcab7d1dd502c3a8771
Source noteuspto-grants-2012_02