反应详情

2-{5-[4-(6-{2-[5-(2-Methoxycarbonylamino-3-methyl-butyryl)-5-aza-spiro[2.4]hept-6-yl]-1H-imidazol-4-yl}-naphthalen-2-yl)-phenyl]-1H-imidazol-2-yl}-thiazolidine-3-carboxylic acid tert-butyl ester (49.9 mg, 0.064 mmol) was dissolved in DCM (0.33 mL) and HCl in dioxane (4M, 0.33 mL) was added and stirring at room temperature was continued. After 45 minutes, all volatiles were removed in vacuo. The crude material was used in the next step without further purification. The crude material was dissolved in DMF (0.5 mL) and DIEA (24.6 mg, 0.191 mmol) was added. A solution of (L) 4-methoxy-2-methoxycarbonylamino-butyric acid (12.1 mg, 0.064 mmol), HATU (24.1 mg, 0.064 mmol) and DIEA (8.2 mg, 0.064 mmol) in DMF (0.5 mL) was added. The reaction was stirred at room temperature. After 3 hrs all volatiles were removed in vacuo. The crude material, which was purified by RP-HPLC (eluent: water/MeCN w/0.1% TFA) to yield the product (21.3 mg) as a TFA salt.

1. customall volatiles were removed in vacuo
2. customThe crude material was used in the next step without further purification
3. dissolutionThe crude material was dissolved in DMF (0.5 mL)
4. stirringThe reaction was stirred at room temperature
5. customAfter 3 hrs all volatiles were removed in vacuo
6. customThe crude material, which was purified by RP-HPLC (eluent: water/MeCN w/0.1% TFA)