Sodium Hydroxide → HCID 10158265, compound

Participants

Reaction Steps

2-Methyl-5-(1-methyl-2-oxo-propoxy)-1H-indole-3-carboxylic acid benzyl ester (0.248 g, 0.707 mmol) and pyrrolidine (0.05 g, 0.706 mmol) were mixed together in dichloroethane and stirred under N2 at room temperature for 1 hour. The reaction was then cooled to 0° C. whereupon sodium triacetoxyborohydride (0.209 g, 0.988 mmol) was added. After 30 minutes, the reaction was then permitted to warm to rt and stirred for a further 2 hours. It was then stopped by the addition of 1N NaOH (10 mL). The mixture was then extracted with EtOAc and the combined organic layers washed with brine and dried over anhydrous Na2SO4 Purification on SiO2 (10% MeOH/CH2Cl2) gave 0.110 g (38%) of the desired compound, mp 94-98° C. 1HNMR (400 MHz, DMSO): 1.58 (d, J=6.10 Hz, 3H), 1.60 (b, 4H), 2.40 (b, 4H), 2.59 (s, 3H, ArCH3),3.35 (b, 1H), 4.43 (m, 1H), 5.26 (s, 2H), 6.69 (d, J=8.44 Hz, 1H), 7.19 (d, J=8.64 Hz, 1H), 7.28-7.44 (m, 6H), 11.72 (s, H, H). MS APCI+) m/z 407.2(MH+). Anal. Calcd for C25H30N2O3.0.20H2O: C, 3.21;H,7.47; N, 6.83. Found: C, 72.84: H, 7.57: N, 6.56 I (KBr): 3294, 2973, 1691, 1665, 1454, 1167, 1073 cm−1.

Provenance & Evidence