4-Methylbenzylamine → HCID 67479274, compound

Participants

Reaction Steps

To a solution of 8.2 (380 mg, 0.866 mmol), TEA (0.362 mL, 2.60 mmol) and 4-methylbenzylamine (0.331 mL, 2.60 mmol) in DCM (21.7 mL) was added HATU (494 mg, 1.299 mmol). The reaction was stirred at room temperature for 2 hours. The reaction was then concentrated and the residue was adsorbed onto a plug of silica gel and purified by chromatography through a 50 g silica gel column, eluting with 0.5 to 10% MeOH in DCM to give 8 as a stereomeric mixture. This mixture was brought up in a mixture of MeOH and DCM and purified by supercritical fluid chromatography using an ODH (21×250 mm, 5 um) column. The stereoisomer was then resolved with a mixture of 35% MeOH with 0.2% diethylamine going to 40% MeOH with 0.2% diethylamine at 4 minutes with a flow rate of 65 mL per minute to provide 8. 1H NMR (300 MHz, CDCl3) δ ppm 1.61 (br. s., 1H) 1.66-1.81 (m, 1H) 1.81-2.00 (m, 2H) 2.07 (s, 3H) 2.30 (s, 3H) 2.37-2.72 (m, 1H) 2.76-3.12 (m, 1H) 3.16-3.55 (m, 1H) 3.55-3.88 (m, 10H) 3.99 (d, J=11.98 Hz, 1H) 4.13-4.50 (m, 2H) 6.51 (br. s., 1H) 6.84 (s, 2H) 6.95-7.26 (m, 4H) 7.34 (br. s., 1H) 7.85 (s, 1H); M+H 506.27637.

Provenance & Evidence