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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 517243Generated: October 30, 2026

Water → 4-(1-(3-(Trifluoromethyl)phenyl)-2,5-dioxo-3-(3-(pyrrolidin-1-yl)propyl)-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)benzonitrile

https://huagongshe.com/reaction/517243

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantLithium diisopropylamideHCID 2724682—
Reactant1-(3-Bromopropyl)pyrrolidine hydrobromideHCID 20135920—
Reactant4-(2,5-Dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)-benzonitrileHCID 86732326—
SolventDimethylformamideHCID 6228—
Product4-(1-(3-(Trifluoromethyl)phenyl)-2,5-dioxo-3-(3-(pyrrolidin-1-yl)propyl)-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)benzonitrileHCID 86732364—

Reaction Steps

In a first flask, lithium diisopropylamide (2.0 M in tetrahydrofuran, 135 μL, 0.27 mmol) is added at 0° C. to a solution of 4-(2,5-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)-benzonitrile (example 1, 100 mg, 0.243 mmol) in N,N-dimethyl-formamide (3 mL, solution A). In another flask, lithium diisopropylamide (2.0 M in tetrahydrofuran, 135 μL, 0.27 mmol) is added to a solution of 1-(3-bromopropyl)pyrrolidine hydrobromide (70 mg, 0.256 mmol) in N,N-dimethylformamide (2 mL, solution B). This solution is then added to solution A and the resulting mixture is stirred at room temperature over night. Water is added, and the mixture is extracted twice with dichloromethane. The combined organic layers are dried over Na2SO4 and concentrated under reduced pressure. The residue is purified by reversed phase HPLC (Waters Xbridge-C18, gradient of methanol in water, 0.1% TFA). Yield: 15 mg; ESI mass spectrum [M+H]+=523; Retention time HPLC: 1.15 min (V001—006).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09115093B2
Source datasetuspto-grants-2015_08
ORD IDord-3b7452923c1a4a9088a1419ae0b44f6b
Source noteuspto-grants-2015_08