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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1937175Generated: October 31, 2026

Methanol → HCID 22462703, compound

https://huagongshe.com/reaction/1937175

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantL-Pyroglutamic AcidHCID 7405—
ReactantAmmonium HydroxideHCID 14923—
ReactantHCID 178478890HCID 178478890—
SolventChloroformHCID 6212—
ProductHCID 22462703HCID 2246270351%

Reaction Steps

By essentially following the conditions described in Example 1, Part A, the free base of the title compound was prepared as a foam from 2-(4-aminophenyl)-3-[4-[2-(1-pyrrolidinyl)ethoxy]benzyl]benzo[b]thiophene (Example 16; Part D) and 2-pyrrolidinone-5-carboxylic acid in 51% yield following radial chromatography (SiO2; 2% then 3% then 4% MeOH in CHCl3 sat'd with NH4OH). The product was converted to the oxalate salt according to the proceedure described in Example 1, Part G.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06391901B1
Source datasetuspto-grants-2002_05
ORD IDord-3ad686b6b80545b489a06239948288e8
Source noteuspto-grants-2002_05