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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1850700Generated: October 29, 2026

1,4-Dibromobutane → 2-(3-Methyl-4-(pyrrolidin-1-yl)isothiazol-5-yl)isoindoline-1,3-dione

https://huagongshe.com/reaction/1850700

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DibromobutaneHCID 8056—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethyl 2-((4-amino-3-methylisothiazol-5-yl)carbamoyl)benzoateHCID 90411342—
SolventDimethylformamideHCID 6228—
Product2-(3-Methyl-4-(pyrrolidin-1-yl)isothiazol-5-yl)isoindoline-1,3-dioneHCID 90411004—

Reaction Conditions

Temperature130 °C

Reaction Steps

DIEA (332.7 mg, 448.4 μL, 2.574 mmol), 1,4-dibromobutane (555.8 mg, 307.4 μL, 2.574 mmol) was added to a solution of methyl 2-[(4-amino-3-methyl-isothiazol-5-yl)carbamoyl]benzoate (150 mg, 0.5149 mmol) in DMF (4 mL) and the mixture was stirred at 130° C. for 40 min in a microwave. The reaction mixture was concentrated in vacuo to yield 2-(3-methyl-4-(pyrrolidin-1-yl)isothiazol-5-yl)isoindoline-1,3-dione that was used in next step without further purification. MS (ES+) 314.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08957078B2
Source datasetuspto-grants-2015_02
ORD IDord-791848be7ce342d7a1afa1cbcc578cbb
Source noteuspto-grants-2015_02