HCID 22727488, compound → HCID 22727497, compound

Participants

Reaction Conditions

Reaction Steps

198 mg (0.65 mmol) of 4-(benzimidazol-2-ylamino)-1-(tert-butyloxycarbonylamino)butane (Example 23c) were dissolved in 20 ml of 95% strength trifluoroacetic acid at 0° C. and stirred at 0° C. for 2 h, then concentrated at RT during the course of 30 min. The residue was coevaporated three times with toluene, then stirred with ether and washed with pentane and dried in vacuo. Yield: 100%. MS (ES+): m/e=205.2 ( (M+H)+, 100%).

Provenance & Evidence