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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1520728Generated: November 3, 2026

Dimethylamine → HCID 44629538, compound

https://huagongshe.com/reaction/1520728

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylamineHCID 674—
ReactantMethanolHCID 887—
Reactant4-Chlorobutyryl chlorideHCID 78370—
ReactantN4-(3-Bromophenyl)quinazoline-4,6-diamineHCID 5328042—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 44629538HCID 4462953836%

Reaction Steps

Reaction of N4-(3-bromophenyl)-4,6-quinazolinediamine (10) (1.76 g, 5.58 mmol) with 4-chlorobutanoyl chloride (0.75 mL, 6.70 mmol) and then aqueous dimethylamine according to the general procedure A, with the exception that the first step was performed in dioxane and the second at 50° C. for 24 hours, gave N-[4-(3-bromoanilino)-6-quinazolinyl]-4-(dimethylamino)butanamide (16) (36%) as a white solid, m.p. (MeOH) 180-182° C. 1H NMR [(CD3)2SO] δ 10.23 (s, 1H), 9.87 (s, 1H), 8.72 (d, J=2.0 Hz, 1H), 8.57 (s, 1H), 8.17 (dd, J=1.9, 1.9 Hz, 1H), 7.88-7.84 (m, 2H), 7.77 (d, J=8.9 Hz, 1H), 7.37-7.27 (m, 2H), 2.43 (t, J=7.2 Hz, 2H), 2.29 (t, J=7.2 Hz, 2H), 2.16 (s, 6H), 1.78 (quintet, J=7.2 Hz, 2H). Analysis found: C, 55.46; H, 5.33; N, 15.96. C20H22BrN5O.¼H2O requires: C, 55.50; H, 5.24; N, 16.18.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073916B2
Source datasetuspto-grants-2015_07
ORD IDord-a7b89e2b0d5643e2926f022789907585
Source noteuspto-grants-2015_07