反应详情

To a solution of (10,11-dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-10-yl)-(2,2′-dimethyl-biphenyl-4-yl)-methanone of Step C (12.4 g, 31.6 mmol) and N,N-dimethylaniline (6.4 mL, 50.5 mmol) in dry dichloromethane (90 mL) at 0° C. under nitrogen, was added trichloroacetyl chloride (5.3 mL, 47.5 mmol). The reaction was then allowed to warm slowly to room temperature while stirring overnight. The reaction mixture then was washed with 2N hydrochloric acid (2×100 mL), water (100 mL) and brine (100 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to give a dark foam. Purification by filtration through a plug of silica gel (60 g) eluting with dichloromethane afforded the title compound (15.9 g, 94%) as a light orange solid, m.p. 212-214° C. MS [(+)ESI, m/z]: 537 [M+H]+.

1. washThe reaction mixture then was washed with 2N hydrochloric acid (2×100 mL), water (100 mL) and brine (100 mL)
2. dry with materialdried over anhydrous magnesium sulfate
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customto give a dark foam
6. customPurification
7. filtrationby filtration through a plug of silica gel (60 g)
8. washeluting with dichloromethane