Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) → tert-butyl 2-(4-chlorophenyl)-3-(4-(7-hydroxy-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-3-oxopropyl(isopropyl)carbamate

Participants

Reaction Steps

To a solution of 4-(piperazin-1-yl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-7-ol dihydrochloride (40 mg, 0.14 mmol) in DCM (20 mL) and TEA (2 mL) was added 3-(tert-butoxycarbonyl(isopropyl)amino)-2-(4-chlorophenyl)propanoic acid (47 mg, 0.14 mmol) and HBTU (52 mg, 0.14 mmol). The mixture was stirred at room temperature for 1 hour. The solvent was removed and the residue was subject to chromatography on silica gel, eluted by ethyl acetate to afford the tert-butyl 2-(4-chlorophenyl)-3-(4-(7-hydroxy-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-3-oxopropyl(isopropyl)carbamate (49 mg, 66%). MS (APCI+) [M+H] +544.

Provenance & Evidence