HCID 59607539, compound → (R)-ethyl 4-(3'-aminobiphenyl-4-yl)-3-(4-methoxy-4-oxobutanamido)butanoate

Participants

Reaction Steps

A suspension of (R)-ethyl 3-(4-methoxy-4-oxobutanamido)-4-(3′-nitrobiphenyl-4-yl)butanoate (123 mg, 0.278 mmol) and Pd/C (59.2 mg, 0.028 mmol) in EtOH (2 ml) is allowed to stir under hydrogen at room temperature for 5.5 hours. The reaction mixture is filtered, and the solution is concentrated to give (R)-ethyl 4-(3′-aminobiphenyl-4-yl)-3-(4-methoxy-4-oxobutanamido)butanoate (105 mg); HPLC retention time=0.84 minutes (condition B); MS (m+1)=413.1; 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 1.28 (t, J=7.2 Hz, 3H) 2.41-2.65 (m, 6H) 2.85-3.00 (m, 2H) 3.67 (s, 3H) 4.11-4.22 (m, 2H) 4.46-4.54 (m, 1H) 6.31 (br d, J=8.8 Hz, 1H) 6.71-6.74 (m, 1H) 6.95-7.02 (m, 2H) 7.21-7.25 (m, 3H) 7.48-7.50 (m, 2H).

Provenance & Evidence