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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 900273Generated: October 27, 2026

Phthalic Anhydride → [4-(1,3-Dioxobenzo[c]azolidin-2-yl)phenyl]-n-[(5-chloro(2-thienyl))sulfonyl]carboxamide

https://huagongshe.com/reaction/900273

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
Reactant(4-Aminophenyl)-n-[(5-chloro(2-thienyl))sulfonyl]carboxamideHCID 131724995—
SolventDimethylformamideHCID 6228—
Product[4-(1,3-Dioxobenzo[c]azolidin-2-yl)phenyl]-n-[(5-chloro(2-thienyl))sulfonyl]carboxamideHCID 2080026255%

Reaction Conditions

Temperature110 °C

Reaction Steps

A 22 mg portion (0.070) of (4-aminophenyl)-N-[(5-chloro(2-thienyl))sulfonyl]carboxamide was combined with 15 mg (0.10 mmol) of phthalic anhydride in 140 μL of DMF. After 18 h of heating at 110° C., the mixture was cooled and purified by RP-HPLC, to give 20 mg (55%) of the desired compound. ES-MS (M+H)+=447 (Cl).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07358257B2
Source datasetuspto-grants-2008_04
ORD IDord-8528bcc4fb6b4a96b0a133c0e2a49fb5
Source noteuspto-grants-2008_04