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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2084989Generated: October 31, 2026

HCID 22728615, compound → HCID 22728606, compound

https://huagongshe.com/reaction/2084989

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 22728615HCID 22728615—
CatalystTrifluoroacetic acidHCID 6422—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
ProductHCID 22728606HCID 22728606—

Reaction Steps

A solution of 3-[4-[2-(t-butoxycarbonylamino)ethyl]phenylamino]-4-(2-methoxyphenyl)-1H-pyrrole-2,5-dione (0.060 g. 0.13 mmol) and trifluoroacetic acid (4 drops) in dry DCM (5 mL) was stirred for 18 hours at room temperature. The suspension was diluted with ethyl acetate (10 mL), poured onto sodium bicarbonate (20 mL) and extracted with ethyl acetate (3×10 mL). The combined organic solutions were washed with brine, dried with magnesium sulfate, evaporated and the residue triturated with a mixture of hexane-dichloromethane (95:5 v/v) to afford the tide compound as an orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06719520B2
Source datasetuspto-grants-2004_04
ORD IDord-513fb49a54a74ee2ba2e3edfd5015cc2
Source noteuspto-grants-2004_04