Acetic Acid → HCID 59713936, compound

Participants

Reaction Steps

As illustrated in the scheme above and following General Procedure 6, KHMDS (7.0 mL of 0.5 M in toluene, 3.5 mmol), 7-chloro-5-(2,4-dimethoxy-5-pyrimidinyl)-1,3-dihydro-1-methyl-2H-1,4-benzodiazepin-2-one (1.16 g, 3.35 mmol), trisyl azide (2.60 g, 8.40 mmol) and acetic acid (0.85 mL, 14.8 mmol) were combined. After workup, purification of the crude product by silica gel column chromatography (2:3 hexanes:EtOAc) provided the title compound as a pale yellow solid (1.23 g, 95%). 1H-NMR (CDCl3): δ 8.64 (s, 1H), 7.54 (dd, J=2.3 Hz, J=8.8 Hz, 1H), 7.33 (d, J=8.8 Hz, 1H), 7.19 (d, J=2.3 Hz, 1H), 4.51 (s, 1H), 4.08 (s, 3H), 3.78 (s, 3H), 3.47 (s, 3H). MS (ESI) (M+H)+388.

Provenance & Evidence