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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 338512Generated: October 30, 2026

Hydrochloric Acid → HCID 178524786, compound

https://huagongshe.com/reaction/338512

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 178498872HCID 178498872—
SolventMethanol--water (1/1)HCID 22242641—
ProductHCID 178524786HCID 17852478654%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a solution of methyl 6-chloro-5-[4-(trans-3-hydroxycyclobutyl)phenyl]-1H-indole-3-carboxylate (290 mg, 0.82 mmol) in methanol/water (20 mL, v/v=1/1) was added sodium hydroxide (326 mg, 8.17 mmol). The mixture was stirred at 90° C. for 5 hours. The mixture was then acidified with 1M HCl to pH ˜5. The resulting suspension was extracted with dichloromethane. The combined organic layers were washed with brine, dried over sodium sulfate and concentrated. The residue was purified by reverse phase HPLC to give the title compound (150 mg, 54%) as a white solid. MS (AP+) 342.0 (M+H)+: 1H NMR (500 MHz, CD3OD) δ 8.03 (s, 1H), 8.02 (s, 1H), 7.59 (s, 1H), 7.41 (d, 2H), 7.34 (d, 2H), 4.53-4.50 (m, 1H), 3.67-3.65 (m, 1H), 2.55-2.43 (m, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889730B2
Source datasetuspto-grants-2014_11
ORD IDord-b7b71485b1d94eb0bfb381581bb745f9
Source noteuspto-grants-2014_11