Dicyclohexylcarbodiimide → HCID 131727406, compound

Participants

Reaction Steps

A solution of Example 40B (20 mg, 0.066 mmol), 1,3-dicyclohexylcarbodiimide (20 mg, 0.1 mmol) in tetrahydrofuran (2 mL) and methanol (0.5 mL) was stirred at 25° C. for 16 hours. The solution was and concentrated in vacuo. Column chromatography on silica (7% methanol/dichloromethane) afforded the title compound (19 mg, 91%). 1H NMR (300 MHz, DMSO-d6) δ ppm 0.37-0.47 (m, 1H), 0.68 (dd, J=13.24, 6.62 Hz, 6H), 0.76-0.91 (m, 1H), 1.15-1.34 (m, 1H), 1.81-1.98 (m, 1H), 2.05-2.22 (m, 1H), 3.40 (d, J=15.08 Hz, 1H), 3.57 (s, 3H), 3.76 (d, J=15.07 Hz, 1H), 5.75 (s, 1H), 7.43-7.57 (m, 1H), 7.55-7.70 (m, 2H), 7.89 (d, J=7.72 Hz, 1H), 11.94 (br. s, 1H); MS (ESI) m/z 319.0 (M+H)+.

Provenance & Evidence