Diisopropylethylamine → HCID 178457048, compound

Participants

Reaction Steps

To a 20 mL dichloroethane solution of 0.35 g (0.92 mmol) 4-(cyclohexylamino)-1-(3-fluorophenyl)-1,3,8-triazaspiro[4.5]dec-3-en-2-one and 0.25 mL (1.4 mmol) DIEA went 0.16 g (0.92 mmol) 3-(3-formylphenyl)-2-methylpropanenitrile (9-3). The suspension was allowed to stir for 10 min then 0.4 g (1.9 mmol) sodium triacetoxyborohydride was added and the reaction was allowed to stir at rt overnight. HPLC/MS showed no starting material so the reaction was quenched with 100 mL sat NaHCO3 and diluted with CH2Cl2. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. The remaining oil was purified on an Isco automated system affixed with a Biotage Flash 25(M) cartridge eluted with 5% MeOH+0.5M NH3 in CH2Cl2 at 25 mL/min over 30 min. The product eluted second.

Provenance & Evidence