Water → Ethyl 5-{[2-(2-{[4-(5-methyl-1,3-benzoxazol-2-yl)benzyl]oxy}phenyl)ethyl]amino}-5,6,7,8-tetrahydroquinoline-2-carboxylate

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Reaction Steps

3.8 g (5.99 mmol) of ethyl 5-{[2-(2-{[4-(5-methyl-1,3-benzoxazol-2-yl)benzyl]oxy}phenyl)ethyl]-amino}-5,6,7,8-tetrahydroquinoline-2-carboxylate dihydrochloride (Enantiomer 1, Example 27A) were dissolved in 50 ml of THF, 2.5 ml of triethylamine were added and the mixture was stirred at room temperature for 1 h. Water and ethyl acetate were then added to the mixture, and the phases were separated. The aqueous phase was extracted twice with ethyl acetate, and the combined organic phases were then dried over magnesium sulphate, filtered and concentrated to dryness. This gave 2.48 g (4.42 mmol, 74% of theory) of the target compound.

Provenance & Evidence