反应详情

温度

60 °C

45 mg (0.06 mmol) of ethyl 5-([2-(2-{[4-(5-chloro-1,3-benzoxazol-2-yl)benzyl]oxy}-phenyl)ethyl]-{2-[4-(methoxycarbonyl)phenyl]ethyl}amino)-5,6,7,8-tetrahydroquinoline-2-carboxylate (Enantiomer 2, Example 64A) were taken up in 4 ml of THF and 2 ml of water, and 8 mg (0.18 mmol) of lithium hydroxide monohydrate were added. The reaction was stirred at 60° C. overnight. After the reaction had gone to completion, the THF was removed on a rotary evaporator and the mixture that remained was diluted with water. The mixture was then acidified to pH 4-5 using acetic acid and extracted repeatedly with ethyl acetate. The combined organic phases were dried over magnesium sulphate, filtered and concentrated to dryness. This gave 13 mg (0.02 mmol, 32% of theory) of the title compound.

1. customthe THF was removed on a rotary evaporator
2. additionthe mixture that remained was diluted with water
3. extractionextracted repeatedly with ethyl acetate
4. dry with materialThe combined organic phases were dried over magnesium sulphate
5. filtrationfiltered
6. concentrationconcentrated to dryness