4-Methylmorpholine → 1-[9-((1R,2S,3R,4S)-2,3-Dihydroxy-4-propionylamino-cyclopentyl)-6-(2,2-diphenyl-ethylamino)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid (pyridin-2-ylmethyl)-amide

Participants

Reaction Steps

A mixture comprising 1-[9-((1R,2S,3R,4S)-2,3-dihydroxy-4-propionylamino-cyclopentyl)-6-(2,2-diphenyl-ethylamino)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid (0.06 g, 0.01 mmol) in dry DCM (10 ml) is treated with 2-aminomethylpyridine (0.021 g, 0.2 mmol) followed by HOBt (0.027 g, 0.2 mmol), 1-[Bis(dimethylamino)methylene]-1H-benzotriazoliumhexafluorophosphate-3-oxide HBTU (0.076 g, 0.2 mmol), N-methyl morpholine (0.02 g, 0.2 mmol) and DMAP (1 ml). The resulting mixture is stirred at room temperature for 24 h and then concentrated in vacuo. The resulting residue purified by preparative TLC eluting with 10% MeOH in chloroform to afford the title compound. (MH+ 687.1)

Provenance & Evidence