Sodium Hydroxide → HCID 25144892, compound

Participants

Reaction Steps

To a mixture of EXAMPLE 565B (62.8 mg), acrylic acid (9.91 μl) and 2-(1H-7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyl uronium hexafluorophosphate Methanaminium (HATU, 54.9 mg) in tetrahydrofuran (3 ml) was added triethylamine (36.6 μl). The reaction was stirred at room temperature overnight, diluted with ethyl acetate and washed with water. The organic layer was dried over sodium sulfate, filtered and concentrated. The residue was purified by flash chromatography, eluting with dichloromethane, to provide ethyl 3-(3-(6-acrylamidonaphthalen-1-yloxy)propyl)-7-o-tolyl-1H-indole-2-carboxylate. This ester was hydrolyzed with aqueous NaOH in tetrahydrofuran and methanol to provide the title compound. 1H NMR (500 MHz, methanol-d4) δ 8.22-8.25 (m, 2 H), 7.68 (dd, J=5.95, 3.20 Hz, 1 H), 7.59 (dd, J=9.15, 2.14 Hz, 1 H), 7.25-7.37 (m, 6 H), 7.05-7.08 (m, 2 H), 6.74 (dd, J=6.10, 2.44 Hz, 1 H), 6.46-6.55 (m, 1 H), 6.38-6.44 (m, 1 H), 5.80 (dd, J=10.07, 1.83 Hz, 1 H), 4.20 (t, J=5.95 Hz, 2 H), 3.40-3.56 (m, 2 H), 2.34 (t, J=6.71 Hz, 2 H), 2.11 (s, 3 H).

Provenance & Evidence