Trimethylsilyldiazomethane → HCID 67271476, compound

Participants

Reaction Steps

A 60 mg (0.11 mmol) portion of (4S,5S)-4-(3,5-difluorobenzyl)-5-((R)-2-benzhydryl-8-hydroxy-1,2,3,4-tetrahydroisoquinolin-3-yl)oxazolidin-2-one from Step F (14) was dissolved in 2.5 mL of a 4:1 solution of diethyl ether and methanol. A 0.5 mL portion of 2M trimethylsilyldiazomethane was added and the solution was stirred at rt for 16 h. The excess diazomethane was quenched with the addition of several drops of acetic acid and the solvents were removed in vacuo to provide the desired product. 1H NMR (500 MHz, CDCl3) δ ppm 2.45-2.59 (m, 1H) 3.16-3.22 (m, 1H) 3.25 (dd, J=10.07, 5.49 Hz, 1H) 3.67 (s, 3H) 3.76 (s, 1H) 3.80 (d, J=2.14 Hz, 1H) 3.83 (d, J=2.44 Hz, 1H) 3.97-4.03 (m, 1H) 4.08 (d, J=18.62 Hz, 1H) 4.70 (dd, J=10.22, 6.56 Hz, 1H) 4.85 (s, 1H) 4.92 (s, 1H) 6.66 (d, J=7.93 Hz, 1H) 6.78 (d, J=7.63 Hz, 3H) 7.14-7.19 (m, 1H) 7.20-7.29 (m, 5H) 7.32 (t, J=7.63 Hz, 2H) 7.35 (d, J=7.02 Hz, 2H) 7.42 (d, J=7.32 Hz, 2H).

Provenance & Evidence