Triethylamine → HCID 59095081, compound

Participants

Reaction Steps

Under an inert atmosphere ((R)-7-methoxy-1,2,3,4-tetrahydro-naphthalen-2-yl)-(2-piperidin-4-yl-ethyl)-propyl-amine (200 mg, 0.61 mmol), piperidine-1,4-dicarboxylic acid mono-tert-butyl ester (139 mg, 0.61 mmol), EDCl (117 mg, 0.61 mmol), HOBT (82 mg, 0.61 mmol), triethylamine (0.17 mL, 1.2 mmol), and dichloromethane (35 mL) were combined. The mixture was stirred at room temperature for 48 h and then concentrated in-vacuo. The residue was taken-up in EtOAc (50 mL) and washed with water (30 mL), 1 N NaOH (30 mL), brine (30 mL), and dried (MgSO4). The solution was filtered and concentrated to afford an oil. The oil was flash chromatographed on silica gel eluting with 20% acetone in hexanes to afford the protected amine (260 mg) which was deprotected with 10 mL trifluoroacetic acid, as described herein, to afford (4-{2-[((R)-7-methoxy-1,2,3,4-tetrahydro-naphthalen-2-yl)-propyl-amino]-ethyl}-piperidin-1-yl)-piperidin-4-yl-methanone (200 mg) 116[M+H]+=478.

Provenance & Evidence