Diisopropylethylamine → HCID 178448520, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 9-bromo-2-(3-trifluoromethyl-1H-pyrazol-4-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulene (73 mg, 0.18 mmol), 1-tert-butylpiperidine-4-thiol (63 mg, 0.37 mmol), Pd2(dba)3 (55 mg, 0.06 mmol), Xantphos (35 mg, 0.06 mmol) and DIPEA (125 μL, 0.73 mmol) in dioxane (3 mL) was purged with argon and heated at 100° C. for 2 h. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge which was washed with MeOH and the product eluted with 2M NH3/MeOH. The resulting residue was purified by column chromatography (Si-PCC, gradient 0-10% MeOH in DCM) followed by reverse phase HPLC (Phenomenex Gemini 5 μm C18, on a gradient 5-95%, 0.1% HCO2H in acetonitrile/water) affording 159 (56 mg, 31%). LCMS: RT 3.11 min [M+H]+ 492.1. 1H NMR (DMSO, 400 MHz): δ 8.51 (1H, d, J=2.40 Hz), 8.26-8.25 (1H, m), 8.21 (1H, s), 7.42 (1H, s), 7.31 (1H, dd, J=8.46, 2.42 Hz), 7.01 (1H, d, J=8.46 Hz), 4.47 (4H, s), 3.12-3.01 (1H, m), 3.05-2.93 (2H, m), 2.24 (2H, t, J=11.08 Hz), 1.92 (2H, d, J=12.67 Hz), 1.48-1.47 (2H, m), 1.02 (9H, s)

Provenance & Evidence