Hydrazine hydrate (1:1) → HCID 69435452, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of Example 30G (276 mg, 0.53 mmol) in ethanol (6 mL) was added hydrazine monohydrate (0.16 mL, 3.2 mmol). The reaction was heated at 60° C. for 45 minutes and filtered. The filtrate was concentrated and purified on silica gel eluting with 90:8:2 dichloromethane/methanol/concentrated ammonium hydroxide to provide 201 mg of the title compound (97%) as an amber liquid. 1H NMR (300 MHz, DMSO-d6) δ ppm 0.29-0.38 (m, 2H) 0.53-0.65 (m, 2H) 1.12-1.23 (m, 1H) 1.34 (d, J=7.35 Hz, 3 H) 3.88 (d, J=7.35 Hz, 2H) 3.97-4.15 (m, 1H) 6.84 (s, 1H) 7.03 (dd, J=9.19, 2.94 Hz, 1H) 7.24 (d, J=2.94 Hz, 1H) 7.53 (d, J=9.19 Hz, 1H) 7.91 (s, 1H); MS (ESI) m/z 392.0 (M+H)+.

Provenance & Evidence