反应详情

To a stirred solution of the compound prepared in Example 447 (94 mg) and 1-hydroxybenzotriazole hydrate (67 mg) in N,N-dimethylformamide (2.5 mL) at ambient temperature was added 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (84 mg). The resulting solution was stirred at ambient temperature for 40 minutes, and then the compound prepared in Example 214 (189 mg) was added, followed immediately by N,N-diisopropylethylamine (0.35 mL). The resulting mixture was stirred at ambient temperature for 1 hr 50 minutes, and then diluted with water (25 mL). After stirring for 30 minutes, the resulting precipitate was collected by filtration, washed with a small amount of water, and dried under vacuum to provide the title compound (95 mg) with the following physical data.

1. stirringThe resulting mixture was stirred at ambient temperature for 1 hr 50 minutes
2. stirringAfter stirring for 30 minutes
3. filtrationthe resulting precipitate was collected by filtration
4. washwashed with a small amount of water
5. customdried under vacuum