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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1583394Generated: November 1, 2026

Dimethylformamide → N-(4-1H-Imidazol-1-yl)butyl-2-(1-methylethyl)-11-oxo-11H-pyrido(2,1b)quinazoline-8-carboxamide

https://huagongshe.com/reaction/1583394

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactantcyanomethyl 2-(1-methylethyl)-11-oxo-11H-pyrido[2,1-b]quinazoline-8-carboxylateHCID 13557516—
Reactant(1H-imidazol-1-yl)butanamineHCID 18612370—
SolventWaterHCID 962—
ProductN-(4-1H-Imidazol-1-yl)butyl-2-(1-methylethyl)-11-oxo-11H-pyrido(2,1b)quinazoline-8-carboxamideHCID 14595585%

Reaction Steps

A solution of 1.30 g of cyanomethyl 2-(1-methylethyl)-11-oxo-11H-pyrido[2,1-b]quinazoline-8-carboxylate and 1.20 g of (1H-imidazol-1-yl)butanamine in 15 ml of dimethylformamide was stirred at a bath temperature of 35° C. for 18 hours. The reaction mixture was diluted with water and the crude precipitate was recrystallized from acetonitrile to give 1.41 g (85%) of N-[4-(1H-imidazol-1-yl)butyl]-2-(1-methylethyl)-11-oxo-11H-pyrido[2,1-b]quinazoline-8-carboxamide, mp 165°-167° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04551460
Source datasetuspto-grants-1985_11
ORD IDord-b6a3d336bdb74241be1bdb1d12785fdd
Source noteuspto-grants-1985_11