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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270805Generated: October 31, 2026

(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid → 2-(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-1-[4-(4-chloro-phenyl)-2-(R)-methyl-piperazin-1-yl]-ethanone

https://huagongshe.com/reaction/270805

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acidHCID 1876853—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant(3R)-1-(4-chlorophenyl)-3-methylpiperazineHCID 21071026—
Product2-(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-1-[4-(4-chloro-phenyl)-2-(R)-methyl-piperazin-1-yl]-ethanoneHCID 21071088—

Reaction Steps

Title compound was prepared following the HATU mediated coupling protocol P, wherein 1-(4-Chlorophenyl)-3-(R)-methylpiperazine and (4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid were used as the coupling components, to give the product as a white solid: 1H NMR (CDCl3, 300 MHz) 7.25 (d 2H), 6.83 (d, 2H), 4.91 (m, 3H), 4.28 (m, 1H), 3.80-3.10 (m, 4H), 2.86 (m, 1H), 2.71 (m, 1H), 2.29 (s, 3H), 1.40 (m, 3H) ppm; MS (ES) expect M+H=435.1, found 435.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449576B1
Source datasetuspto-grants-2008_11
ORD IDord-f1bf38ee7a4940e2b899b3fb363da1fe
Source noteuspto-grants-2008_11