Sodium Hydroxide → HCID 16065084, compound

Participants

Reaction Conditions

Reaction Steps

To crude azaindole 62 (118 mg) in EtOH (6 mL) was added 10% NaOH (1 mL) and the mixture was stirred in an oil bath (90° C.) for 4.5 h. The mixture was then cooled to r.t., diluted with AcOEt and saturated brine and partitioned. The aqueous layer was extracted with AcOEt (3×). The combined organic solutions were dried (MgSO4), filtered and concentrated. The residual yellow oil was partially purified by means of PTLC employing AcOEt as eluent to afford a semi-pure azaindole 63 (74 mg). A fraction (14 mg) of this material was further purified by means of preparative LCMS (column LUNA 10 μ C18(2) 00G-4253-V0 250×50 mm) using water—acetonitrile (0.1% AcOH) as eluent (in gradient; flow 80 mL/min) to give the desired azaindole 63 (5.6 mg, 25%); 1H NMR (400 MHz; CDCl3) δ 0.92 (s, 3H), 0.94 (s, 3H), 1.90 (m, 1H), 2.59 (d, J=7.2 Hz, 2H), 3.98 (s, 3H), 7.36 (d, J=2.1 Hz, 1H), 7.60 (s, 1H), 7.74 (d, J=0.6 Hz, 1H), 7.81 (d, J=1.8 Hz, 1H), 8.14 (d, J=1.8 Hz, 1H), 9.62 (br s, 1H); MS (CI) m/z 255 (MH+).

Provenance & Evidence