Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2405935Generated: October 30, 2026

Hydrochloric Acid → HCID 66558215, compound

https://huagongshe.com/reaction/2405935

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 86710243HCID 86710243—
SolventEthanolHCID 702—
ProductHCID 66558215HCID 6655821597.3%

Reaction Steps

To a solution of (2R)-2-methyl-2-(methylsulfonyl)-4-[4-(pyrazin-2-yl)-1H-pyrazol-1-yl]-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (0.182 g, 0.430 mmol) in EtOH (8 mL) was added 1M HCl (15 mL). The reaction mixture was allowed to stir at RT overnight. The reaction mixture was concentrated, and azeotroped with methanol to remove water to give (2R)—N-hydroxy-2-methyl-2-(methylsulfonyl)-4-[4-(pyrazin-2-yl)-1H-pyrazol-1-yl]butanamide (142 mg, 97% yield) as an off-white solid. 1H NMR (400 MHz, DMSO-d6) δ 1.49 (s, 3H) 2.21-2.33 (m, 1H) 2.68-2.80 (m, 1H) 3.06 (s, 3H) 4.05-4.15 (m, 1H) 4.22-4.32 (m, 1H) 8.12 (s, 1H) 8.40 (d, J=2.54 Hz, 1H) 8.50 (s, 1H) 8.54 (dd, J=2.54, 1.56 Hz, 1H) 8.96 (d, J=1.56 Hz, 1H) 10.93 (br. s., 1H) 11.14 (s, 1H) LC-MS M+H+340.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08809333B2
Source datasetuspto-grants-2014_08
ORD IDord-b00f4063ed57479ba02266e5a1e714c0
Source noteuspto-grants-2014_08