Diisopropylethylamine → N-(2-amino-4-(trifluoromethoxy)phenyl)-3-(3-((((3 aR,4R,6R,6aS)-6-(4-((2,4-dimethoxybenzyl)amino)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-4-yl)methyl)(methyl)amino)cyclobutyl)propanamide

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Reaction Steps

N,N,N′,N′-Tetramethyl-0-(7-azabenzotriazol-1-yl)uronium Hexafluorophosphate (1.2 g, 3.2 mmol) added to a solution 3-(3-((((3aR,4R,6R,6aS)-6-(4-((2,4-dimethoxybenzyl)amino)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-4-yl)methyl)(methyl)amino)cyclobutyl)propanoic acid (1.25 g, 2.10 mmol) and N,N-Diisopropylethylamine (1.2 mL, 6.9 mmol) and 4-(trifluoromethoxy)benzene-1,2-diamine (0.48 g, 2.5 mmol) in N,N-Dimethylformamide (10 mL). The mixture was stirred overnight at RT, partially concentrated to ca. 2 mls and then NaHCO3 (saturated) was added. The mixture was extracted with EtOAc (3×) and the combined organics were dried with MgSO4, filtered and concentrated. The residue was purified by flash chromatography (DCM/7N NH3 in MeOH 95:5) to give the desired compound (2 g) as an oil.

Provenance & Evidence