反应详情

Combine 2-(2-(5-propoxy-1-triisopropylsilanyl-1H-indol-3-yl)ethyl)isoindole-1,3-dione (416 mg, 0.8 mmol) in 20 mL EtOH and 1 mL hydrazine hydrate. Reflux for 3 hours, filter through celite and concentrate to residue. Dissolve the residue in 10 mL MeOH and load onto a 12 g SCX ion exchange cartridge and rinse sequentially with MeOH, DMF, then MeOH. Elute the product with 2 M NH3 in MeOH to give the title compound as an oil: ISMS 375 (M+1); 1H NMR (CDCl3) 7.34-7.32 (d, 1H), 7.02 (s, 1H), 7.00-6.99 (d, 1H), 6.80-6.77 (m, 1H), 3.97-3.94 (m, 2H), 3.01-2.98 (m, 2H), 2.86-2.83 (m, 2H), 1.88-1.76 (m, 2H), 1.70-1.58 (m, 3H), 1.3 (bs, 2H), 1.14-1.08 (m, 18H), 1.06-1.02 (t, 3H).

1. temperatureReflux for 3 hours
2. filtrationfilter through celite
3. concentrationconcentrate to residue
4. dissolutionDissolve the residue in 10 mL MeOH
5. washload onto a 12 g SCX ion exchange cartridge and rinse sequentially with MeOH, DMF
6. washElute the product with 2 M NH3 in MeOH