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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1401869Generated: October 31, 2026

Trifluoroacetic acid → Morpholine-2-carboxylic acid [6-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)pyridin-2-yl]amide

https://huagongshe.com/reaction/1401869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant2-[6-(5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)pyridin-2-ylcarbamoyl]morpholine-4-carboxylic acid tert-butyl esterHCID 67323275—
SolventDichloromethaneHCID 6344—
ProductMorpholine-2-carboxylic acid [6-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)pyridin-2-yl]amideHCID 67249005—

Reaction Steps

The protecting group is cleaved off as already described using TFA in DCM starting from 92 mg (0.19 mmol) of 2-[6-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)pyridin-2-ylcarbamoyl]morpholine-4-carboxylic acid tert-butyl ester from step b. The product is purified by means of preparative HPLC and is in the form of the TFA salt.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08907098B2
Source datasetuspto-grants-2014_12
ORD IDord-c9637eb2815a459eaea54e75fd37a05e
Source noteuspto-grants-2014_12