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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1892789Generated: October 31, 2026

Hydrochloric Acid → (+/-)-cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methanamine hydrochloride

https://huagongshe.com/reaction/1892789

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 68178656HCID 68178656—
SolventMethanolHCID 887—
Product(+/-)-cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methanamine hydrochlorideHCID 68279202—

Reaction Steps

To a solution of (+/−)-N-(cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)-2-methylpropane-2-sulfinamide (1.184 g, 2.680 mmol) in methanol (13.4 mL) was added hydrogen chloride (4 M in dioxane, 3.35 mL, 13.4 mmol) dropwise. The reaction was concentrated under reduced pressure to provide (+/−)-cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methanamine hydrochloride. 1H NMR (400 MHz, CD3OD, δ): 8.33 (s, 1 H), 8.07 (s, 1H), 7.31 (s, 2H), 4.05 (d, J=10.6 Hz, 1H), 2.35-2.51 (m, 1H), 2.10-1.98 (m, 7H), 1.89-1.39 (m, 6H), 1.20-1.14 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507533B2
Source datasetuspto-grants-2013_08
ORD IDord-59516b4acfee465cb2fd3b44f0cd054e
Source noteuspto-grants-2013_08