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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1595044Generated: October 30, 2026

Hydrochloric Acid → 6-Hydroxy-3-[3-methoxy-4-(1-pyrrolidinylmethyl)benzyl]-2-[4-[4-hydroxy-4-oxobutoxy]phenyl]benzo[b]thiophene

https://huagongshe.com/reaction/1595044

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
Reactant6-Hydroxy-3-[3-methoxy-4-(1-pyrrolidinylmethyl)benzyl]-2-[4-[4-methoxy-4-oxobutoxy]phenyl]benzo[b]thiopheneHCID 21706319—
SolventMethanol tetrahydrofuran waterHCID 21892291—
Product6-Hydroxy-3-[3-methoxy-4-(1-pyrrolidinylmethyl)benzyl]-2-[4-[4-hydroxy-4-oxobutoxy]phenyl]benzo[b]thiopheneHCID 21706313—

Reaction Steps

6-Hydroxy-3-[3-methoxy-4-(1-pyrrolidinylmethyl)benzyl]-2-[4-[4-methoxy-4-oxobutoxy]phenyl]benzo[b]thiophene (147 mg) was dissolved in THF:MeOH:H2O (3:1:1, 3.0 mL), treated with lithium hydroxide monhydrate (12 mg) in one portion, and allowed to stir at ambient temperature for 4 days. The reaction mixture was neutralized with dilute HCl and concentrated in vacuo. The residue was dissolved in methanol. The solution was transfered to a clean vial and solvent was removed with a stream of nitrogen to give the product as an off-white solid. (100 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06284756B1
Source datasetuspto-grants-2001_09
ORD IDord-72f3665d7aaf4373bb6acb81a9f19814
Source noteuspto-grants-2001_09