Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 561921Generated: October 28, 2026

Trifluoroacetic acid → HCID 178426864, compound

https://huagongshe.com/reaction/561921

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantMethyl vinyl sulfoneHCID 19354—
Reactant2-(4-[(R)-3-(2,4-dimethyl-phenoxy)-2-hydroxy-propylamino]-2-oxo-1,2-dihydro-pyridin-3-yl)-6-piperidin-4-yl-6,7-dihydro-3H-1,3,6-triaza-s-indacen-5-oneHCID 178426860—
SolventEthanolHCID 702—
ProductHCID 178426864HCID 178426864—

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of the TFA salt of 2-{4-[(R)-3-(2,4-dimethyl-phenoxy)-2-hydroxy-propylamino]-2-oxo-1,2-dihydro-pyridin-3-yl}-6-piperidin-4-yl-6,7-dihydro-3H-1,3,6-triaza-s-indacen-5-one (40 mg, 0.061 mmol) and methyl vinyl sulfone (318.4 mg, 3.0 mmol) in EtOH (2.0 mL) was heated at 90° C. for 22 h and then evaporated. Chromatography of the residue with CH2Cl2/MeOH/28% aqueous NH4OH (125:10:1) afforded a fluorescent product which was subjected to HPLC purification to afford the title compound in TFA salt form. 1H NMR (DMSO-d6) δ 2.01-2.17 (4H), 2.19 (s, 3H, CH3), 2.21 (s, 3H, CH3), 3.15 (s, 3H, CH3), 3.23 (m, 2H), 3.51-3.75 (8H), 4.01 (m, 2H), 4.15 (m, 1H), 4.34 (m, 1H), 4.47 (s, 2H), 6.22 (d, J=7 Hz, 1H), 6.84 (d, J=7 Hz, 1H), 6.94 (d, J=7 Hz, 1H), 6.98 (s, 1H), 7.36 (dd, J=7 Hz and 6 Hz, 1H), 7.59 (br s, 1H), 7.83 (br s, 1H), 11.14 (br s, 1H, NH), 11.23 (br d, J=6 Hz, 1H, NH); ESI-MS m/z 649.5 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063225B2
Source datasetuspto-grants-2011_11
ORD IDord-732e3f074f37498881db6fcaa90a73d1
Source noteuspto-grants-2011_11