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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2267295Generated: October 31, 2026

Diisopropylethylamine → 1-[2-(4-Benzo[b]thiophen-2-yl-5-bromo-pyrimidin-2-ylamino)-ethyl]-1,3-diazaspiro[4.5]decane-2,4-dione

https://huagongshe.com/reaction/2267295

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant1-(2-Aminoethyl)-1,3-diaza-spiro[4.5]decane-2,4-dioneHCID 57428806—
Reactant4-(Benzo[b]thiophen-2-yl)-5-bromo-2-chloropyrimidineHCID 57428821—
SolventIsopropanolHCID 3776—
Product1-[2-(4-Benzo[b]thiophen-2-yl-5-bromo-pyrimidin-2-ylamino)-ethyl]-1,3-diazaspiro[4.5]decane-2,4-dioneHCID 60204247—

Reaction Conditions

Temperature170 °C

Reaction Steps

A mixture of 4-benzo[b]thiophen-2-yl-5-bromo-2-chloro-pyrimidine (318 mg, 1.0 mmol) and 1-(2-aminoethyl)-1,3-diaza-spiro[4.5]decane-2,4-dione (214 mg, 1.01 equiv.) in isopropyl alcohol (4 mL) was treated with diisopropylethylamine (192 μL, 1.1 equiv.) and heated at 170° C. for 17 min in a Personal Chemistry microwave reactor. Upon cooling, the product was obtained by filtration and washing with isopropyl alcohol, recrystallizing from hot isopropyl alcohol. MS (M+H)+ 500/502.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07858785B2
Source datasetuspto-grants-2010_12
ORD IDord-d81539a4ab084b1580c3662924945db3
Source noteuspto-grants-2010_12