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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2075763Generated: October 31, 2026

Trifluoroacetic acid → HCID 135975008, compound

https://huagongshe.com/reaction/2075763

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant3(R,S)-{4-[3-(5-Chloro-2-hydroxy-phenyl)-1-(2-hydroxy-ethyl)-1H-pyrazol-4-ylethynyl]-phenylcarbamoyl}-morpholine-4-carboxylic acid tert-butyl esterHCID 135974911—
ReactantPiperidine-2(R)-carboxylic acid {4-[3-(5-chloro-2-hydroxy-phenyl)-1-(2-hydroxy-ethyl)-1H-pyrazol-4-ylethynyl]-phenyl}-amideHCID 135974922—
SolventDichloromethaneHCID 6344—
ProductHCID 135975008HCID 13597500874%

Reaction Steps

Using the same procedure for the preparation of 5A, treatment of compound 16A (870 mg) with TFA (10 mL) in methylene chloride (10 mL) gives compound 17A in 74.0% yield. 1H NMR (DMSO-d6, 500 MHz) δ 10.67 (s, 1H), 10.02 (s, 1H), 8.35 (s, 1H), 8.28 (s, 1H), 7.73 (d, 2H, J=8.0 Hz), 7.47 (d, 2H, J=8.5 Hz), 7.30 (d, 1H, J=9.0 Hz), 6.99 (d, 1H, J=8.5 Hz), 5.01 (br s, 1H), 4.26 (br s, 2H), 3.83 (d, 1H, J=7.5 Hz), 3.78 (d, 2H, J=2.5 Hz), 3.61 (m, 3H), 3.52 (m, 2H), 3.43 (t, 1H, J=10.0 Hz), 2.85 (d, 1H, J=13.0 Hz), 2.75 (t, 1H, J=11.0 Hz). LCMS (ESI) m/z 467.09 (MH+, 100); HPLC: tR=3.92 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07923004B2
Source datasetuspto-grants-2011_04
ORD IDord-184fa3081a62431e993b4b23a294afd3
Source noteuspto-grants-2011_04