Trimethylsilyldiazomethane → HCID 135411000, compound

Participants

Reaction Conditions

Reaction Steps

A solution of the product of Example 436 (0.032 g, 0.05 mmol) in 1:1 tetrahydrofuran/methanol (2 ml) at −10° C. was treated dropwise with trimethylsilyl diazomethane (2.0 M in hexanes, 50 μL, 0.1 mmol), then stirred at 25° C. for 16 hours and concentrated under reduced pressure. The residue was chromatographed on silica gel eluting with 3% methanol in dichloromethane to provide the title compound (5 mg, 15% yield). 1H NMR (300 MHz, DMSO-d6) δ 0.99 (d, J=6.25 Hz, 6 H) 1.58 (m, 2 H) 1.69 (m, 1 H) 3.21 (s, 3 H) 4.49 (m, 2 H) 5.19 (s, 2 H) 7.32 (m, 5 H) 7.46 (m, 1 H) 7.51 (dd, J=7.91, 4.60 Hz, 1 H) 7.58 (d, J=2.21 Hz, 1 H) 7.68 (d, J=8.82 Hz, 1 H) 8.57 (dd, J=8.09, 1.84 Hz, 1 H) 8.90 (dd, J=4.78, 1.47 Hz, 1 H) 11.29 (s, 1 H) 14.09 (s, 1 H). MS (ESI−) m/z 653 (M−H)−.

Provenance & Evidence