Sodium Carbonate → (S)-tert-Butyl 4-(1-amino-3-(4-(3-(2-methoxyethyl)-2-oxo-2,3-dihydrobenzo[d]thiazol-5-yl)phenyl)-1-oxopropan-2-ylcarbamoyl)tetrahydro-2H-pyran-4-ylcarbamate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

(S)-tert-butyl 4-(1-amino-3-(4-iodophenyl)-1-oxopropan-2-ylcarbamoyl)tetrahydro-2H-pyran-4-ylcarbamate (Example 1, step (iii), 203 mg) in acetonitrile (7 mL) under nitrogen was treated with 3-(2-methoxyethyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazol-2(3H)-one (Example 9, step (ii), 132 mg) followed by aqueous sodium carbonate (2M, 0.392 mL). Nitrogen was bubbled through the mixture and 1,1 bis(di-tert-butylphosphino)ferrocene palladium dichloride (5 mg) was added. The mixture was stirred at 85° C. for 25 h and then allowed to cool. The solution was purified by chromatography on silica using ethyl acetate 50-100% in isohexane as eluent to afford the sub-titled compound (155 mg).

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