Sodium Carbonate → HCID 86604970, compound

Participants

Reaction Steps

To a solution of methyl methyl 3-cyclohexyl-1-(1,3-dioxolan-2-ylmethyl)-2-(2-formylphenyl)-1H-indole-6-carboxylate (prepared in analogous fashion to Example 4, Step 2, using 2-formylphenylboronic acid) in EtOH (0.05 M), were added aqueous solutions of sodium carbonate (2M; 1.3 eq) followed by hydroxylamine hydrochloride (2M; 1.3 eq). The reaction was stirred at RT for 2 h, before the EtOH was reduced in vacuo and the residue partitioned between EtOAc and water. The aqueous fraction was extracted a second time with EtOAc and the combined organics washed with water and then brine before being dried over Na2SO4, filtered and concentrated in vacuo to afford the title compound (95%); MS (ES+) m/z 463 (M+H)+.

Provenance & Evidence