Methylamine → HCID 22676742, compound

Participants

Reaction Conditions

Reaction Steps

A reaction mixture of ethyl 5-(2-chloroethoxy)-1-(3-methoxybenzyl)-3-(4-methoxyphenyl)-1H-indole-2-carboxylate (Example 152, 290 mg, 0.588 mmol) and methylamine in tetrahydrofuran (2 M, 40 ml) was sealed in a stainless steel vessel (100 ml, bomb) at 0° C. Then it was heated and stirred at 120° C. for 3 days in a oil bath. Oil bath was removed and the bomb was allowed to cooled to room temperature before opened. The reaction solution was transferred to an round-bottomed flask and solvent was concentrated in vacuo. The residue was dissolved in ethyl acetate and washed with 1N NaOH. The organic phase was dried over anhydrous sodium sulfate, concentrated and purified by flash column (silica gel, hexane: ethyl acetate=1:1 to ethyl acetate:2M NH3/ methanol =9:1). 214 mg desired product was obtained as a light yellow oil in 75%. MS (M+H)=489.2, Rf=0.28 (ethyl acetate:2M NH3/methanol=4:1).

Provenance & Evidence