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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 872734Generated: October 30, 2026

Dichloromethane → HCID 52920064, compound

https://huagongshe.com/reaction/872734

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantBromopyruvic AcidHCID 70684—
ReactantHCID 19754710HCID 19754710—
Reactant(S)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrileHCID 67170882—
SolventTetrahydrofuranHCID 8028—
ProductHCID 52920064HCID 5292006437.7%

Reaction Conditions

Temperature60 °C

Reaction Steps

1H-Pyrazole-4-carbothioic acid amide (1.0 g, 7.86 mmol) and 3-bromo-2-oxopropanoic acid (1.44 g, 8.65 mmol) were dissolved in dry THF under nitrogen atmosphere. The reaction mixture was heated at 60° C. for 4.5 h. The reaction mixture was cooled to RT and evaporated to dryness. (S)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrile (1.367 g, 5.24 mmol) and DCM were added to the reaction flask and the title compound was prepared using the method of Example 34(d). The product purified by Flash-chromatography and triturated using acetonitrile. Yield 37.7%. 1H-NMR (400 MHz; DMSO): δ 1.11 (d, 3H), 4.25-4.48 (m, 3H), 6.89 (d, 1H), 7.77 (d, 1H), 7.80 (d, 1H), 7.87 (dd, 1H), 7.93 (bs, 1H), 7.99 (d, 1H), 8.01 (s, 1H), 8.31 (d, 1H), 8.33 (bs, 1H), 13.31 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975254B2
Source datasetuspto-grants-2015_03
ORD IDord-815c8d57f2434be4a27c728de25f1cf7
Source noteuspto-grants-2015_03