反应详情

To a solution of methyl 14-cyclohexyl-7-oxo-7,8-dihydro-6H-indolo[1,2-e][1,5]benzoxazocine-11-carboxylate (prepared as described in Example 9, Step 4) in DCM (0.04 M), were added 3.0 eq of 1-methylpiperazine and 4.5 eq acetic acid, followed by 1.5 eq. of solid sodium triacetoxyborohydride. NaOH (20 eq, 1 N) was added after 2 h, and after stirring for 5 min the mixture was taken into EtOAc and washed with water and brine. Drying over sodium sulfate and concentration in vacuo gave the crude product, which was used without any further purification; MS (ES+) m/z 488 (M+H)+.

1. washwashed with water and brine
2. dry with materialDrying over sodium sulfate and concentration in vacuo