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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 718471Generated: October 30, 2026

Hydrochloric Acid → HCID 118307869, compound

https://huagongshe.com/reaction/718471

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 118307790HCID 118307790—
SolventEthanolHCID 702—
ProductHCID 118307869HCID 11830786970.5%

Reaction Conditions

Temperature90 °C

Reaction Steps

The potassium hydroxide (54.6 mg, 0.97 mmol) was added to a station (S)-isopropyl 2-(tert-butoxy)-2-(5-(4-(4-fluorophenethoxy)phenyl)-2,6-dimethyl-4-(4-(propan-2-ylidene)piperidin-1-yl)pyridin-3-yl)acetate (60 mg, 0.097 mmol) in ethanol (2 mL) and stirred for 6 h at 90° C. The reaction mixture was neutralized with 1N HCl solution, extracted with EtOAc, and the organic layer was washed with brine, and dried (MgSO4). The crude material was purified by prep HPLC to afford (S)-2-(tert-butoxy)-2-(5-(4-(4-fluorophenethoxy)phenyl)-2,6-dimethyl-4-(4-(propan-2-ylidene)piperidin-1-yl)pyridin-3-yl)acetic acid 39.3 mg (70%). 1H NMR (500 MHz, DMSO-d6) δ 7.38-7.35 (m, 2H), 7.19 (d, J=8.4 Hz, 1H), 7.13 (t, J=8.4 Hz, 2H), 6.97 (t, J=8.1 Hz, 2H), 6.90 (d, J=8.1 Hz, 1H), 5.84 (s, 1H), 4.21 (t, J=6.2 Hz, 2H), 3.53 (br. s, 4H), 3.04 (t, J=6.2 Hz, 2H), 2.44 (s, 3H), 2.31-2.28 (m, 1H), 2.05 (br. s, 1H), 2.00 (s, 3H), 1.83 (br. s, 1H), 1.65 (br. s, 1H), 1.56 (s, 3H), 1.49 (s, 3H), 1.12 (s, 9H). UPLC (M+H)=575.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09193720B2
Source datasetuspto-grants-2015_11
ORD IDord-00fa007939914a0daaa9ad1081a662d6
Source noteuspto-grants-2015_11