Diisopropylethylamine → HCID 135921431, compound

Participants

Reaction Conditions

Reaction Steps

2-(4-Chloroquinazolin-2-yl)phenol (0.093 g, 0.362 mmol) was dissolved in DMA (3.6 mL) and then treated with diisopropylethylamine (0.189 mL, 1.087 mmol) followed by tert-butyl 3-aminoazepane-1-carboxylate (0.078 g, 0.362 mmol) and the solution was heated at 60° C. After 18 hours, the reaction mixture was concentrated in vacuo to remove the excess amine and purified by ion exchange chromatography on SCX-2 Isolute acidic resin (2 g), eluting with methanol and then 1 M ammonia in methanol. The solvent was removed in vacuo and the residue was dissolved in methanol (0.22 mL) and treated with 4 M HCl in dioxane (0.22 mL). After 18 hours, the reaction mixture was concentrated in vacuo and purified by ion exchange chromatography on SCX-2 Isolute acidic resin (2 g), eluting with methanol and then 1 M ammonia in methanol. Further purification by silica column chromatography, eluting with a gradient of 3% to 30% methanol in dichloromethane, gave the title compound as a yellow solid (0.007 g, 6%).

Provenance & Evidence