Acetaldehyde → HCID 68762907, compound

Participants

Reaction Steps

To a solution of 3-{7-amino-2-[(2,4-dichlorophenyl)amino]-1H-benzimidazol-1-yl}propane-1,2-diol (Reference Example 87; 630 mg, 1.72 mmol) in methanol (17 mL) and acetic acid (0.34 mL) was added acetaldehyde (0.642 mL, 10.3 mmol) at 0° C. The resultant mixture was stirred at 0° C. for 30 min. To the reaction mixture was added sodium acetoxyborohydride (2.18 g, 10.3 mmol) at 0° C. After 1 hr, the mixture was diluted with ethyl acetate, washed with water and brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to give the title compound (714 mg, 1.69 mmol, 98%) as a colorless solid.

Provenance & Evidence