Benzylamine → trans-2,2,2-trifluoro-N-[2,3,4,14b-tetrahydro-7-[(phenylmethyl)amino]-1H-dibenzo[b,f]pyrido[1,2-d][1,4]oxazepin-1-yl]acetamide

Participants

Reaction Conditions

Reaction Steps

To a solution of trans-N-(7-bromo-2,3,4,14b-tetrahydro-1H-dibenzo[b,f]pyrido[1,2-d][1,4]-oxazepin-1-yl)-2,2,2-trifluoroacetamide (0.5 g, 1.1 mmol) in DME (16 mL), Pd2(dba)3 (12.5 mg, 13.5 μmol), 2-(di-t-butyl-phosphino)biphenyl (25 mg, 80 μmol), sodium-tert-butoxide (218 mg, 2.3 mmol) and benzylamine (243 mg, 2.3 mmol) were added. The resulting reaction mixture was heated to 75° C. and stirred at this temperature for 48 h. The reaction mixture was quenched with sat NaHCO3 (aq) and extracted with ethyl acetate. The organic layer was washed with water and brine, dried (Na2SO4) and evaporated. The crude product was chromatographed with heptane/ethyl acetate 8:2 and purified with HPLC to afford the title compound (21 mg, 32%). Data: 1H-NMR (400 MHz, DMSO) 1.54-2.02 (m, 4H), 2.95 (t, J=9.2, 1H), 3.68 (d, J=14.0, 1H), 4.02 (d, J=10.0, 1H), 4.17 (d, J=6.0, 2H), 4.37 (m, 1H), 5.90-7.33 (12 ArH, 1 NH), 9.11 (d, J=10.0, 1H). (m/z)=468 (M+H)+.

Provenance & Evidence