反应详情

166 mg (0.478 mmol) of N2,N6-bis(tert-butoxycarbonyl)-L-lysine were initially charged in 6.4 ml of DMF. 88 mg (0.652 mmol) of 1-hydroxy-1H-benzotriazole hydrate, 100 mg (0.522 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and 0.379 ml (2.173 mmol) of N,N-diisopropylethylamine were added, 330 mg (0.435 mmol) of 2-{4-(2-({(2-(4-chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl)phenoxy}ethyl L-alaninate trifluoroacetate (Example 40) were then added and the mixture was stirred at RT overnight. Water/acetonitrile was added to the reaction solution in such an amount that a clear solution was formed. This was purified by preparative HPLC (acetonitrile/water+0.1% TFA). This gave 216 mg (44% of theory) of the target compound.

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2. customThis was purified by preparative HPLC (acetonitrile/water+0.1% TFA)