5-Methylisoxazole-3-carbonyl chloride → HCID 178488219, Verbindung

Beteiligte Stoffe

Reaktionsschritte

5-Methyl-3-isoxazolecarbonyl chloride (20 mg, 0.137 mmol) was added to a solution of cis-3-(4-amino-3-methoxyphenyl)-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (30 mg, 0.067 mmol) in pyridine (0.5 mL). After 5 hours, the solvent was evaporated and the residue was purified by preparative HPLC (Hypersil BSD C18, 5 um, 100×21 mm, 0%-100% acetonitrile/0.05M ammonium acetate over 10 min, 25.0 mL/min). The resulting products were further purified by partitioning between dichloromethane (4 ml) and 1.0 N sodium hydroxide (2 ml) and passing through an Empore™ high performance extraction disk cartridge (C 18-SD octadecyl) to give cis-N3-(4-{4-amino-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}-2-methoxyphenyl)-5-methyl-3-isoxazolecarboxamide (14 mg, 38%). 1H NMR (DMSO-d6) δ 1.81 (m, 2H), 2.14 (m, 2H), 2.35 (m, 2H), 2.53 (s, 3H), 2.76 (m, 3H), 3.37 (bm, 8H), 3.99 (s, 3H), 4.93 (m, 1H), 6.74 (s, 1H), 7.36 (m, 2H), 8.26 (m, 1H), 9.48 (s, 1H); LCMS (Finigan-Column: Pecosphere, C18, 3 um, 33×4.6 mm. Eluents: 0% B/A to 100% B/A in 4 min. (B: acetonitrile, A: 50 mM ammonia acetate buffer, pH 4.5), 3.0 mL/min.): MH+ =546.4, Rt=1.82 min.

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