Methanol → HCID 68154076, compound

Participants

Reaction Steps

2-(3-Oxo-5-{[4-(1H-pyrazol-1-yl)phenyl]methyl}-3,5-dihydro-2H-pyrazolo[4,3-c]quinolin-2-yl)benzoic acid (Example 611, 30 mg, 0.065 mmol) was dissolved in tetrahydrofuran (1 mL) and methanol (1 mL) and treated with (trimethylsilyl)diazomethane (0.065 mL, 2 M diethyl ether solution, 0.13 mmol, 2 equiv). After stirring for 30 minutes, the mixture was concentrated in vacuo and the residue was purified by preparative reverse phase HPLC (80:20 to 5:95; water containing 0.1% trifluoroacetic acid:acetonitrile containing 0.1% trifluoroacetic acid), providing the titled compound: 1H-NMR (400 MHz, d6-DMSO) δ 9.15 (1H s), 8.46 (1H, d, J=2.5 Hz), 8.21 (1H, dd, J=7.8, 1.4 Hz), 7.83 (2H, d, J=8.8 Hz), 7.79 (1H, m), 7.77 (1H, d, J=2.3 Hz), 7.73-7.61 (3H, m), 7.56 (1H, t, J=7.7 Hz), 7.46 (2H, d, 8.7 Hz), 7.41 (1H, td, J=7.7, 1.1 Hz), 6.53 (1H, dd, J=2.4, 1.8 Hz), 5.77 (2H, s), 3.67 (3H, s) ppm; low resolution mass spectrometry (ES+) m/z 476.0 [(M+H)+; calculated for C28H22N5O3: 476.2].

Provenance & Evidence