Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 504607Generated: October 29, 2026

Hydrochloric Acid → HCID 72296196, compound

https://huagongshe.com/reaction/504607

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantHCID 72296194HCID 72296194—
SolventMethanolHCID 887—
ProductHCID 72296196HCID 72296196—

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of racemic (2′S,3S,4′R)-6-chloro-4′-[5-chloro-2-(1-methoxycarbonyl-1-ethyl-propoxy)-phenyl]-5-fluoro-2′-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (120 mg, 0.19 mmol), LiOH.H2O (140 mg, 3.3 mmol), H2O (1.25 mL) and methanol (3.75 mL) was heated at 80° C. for 1 h. After cooled to room temperature, the mixture was acidified by addition of 0.5 N HCl and partitioned between EtOAc and water. The organic phase was washed with brine, dried over anhydrous Na2SO4 and concentrated to give the crude product, which was used for the next step reaction without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07776875B2
Source datasetuspto-grants-2010_08
ORD IDord-74795d6707a9463bab43d9c82da5a504
Source noteuspto-grants-2010_08