Trifluoroacetic acid → HCID 178484181, compound

Participants

Reaction Steps

HATU (66 mg, 0.17 mmol) was added to a stirred solution of a TFA salt of 2,2′-bis(2-((2S)-2-pyrrolidinyl)-1H-imidazol-5-yl)-5,5′-bi-1,3-thiazole (40 mg, 0.045 mmol), (R)-2-(dimethylamino)-2-phenylacetic acid hydrochloride (39 mg, 0.18 mmol) and DIEA (0.078 mL, 0.45 mmol) in dimethylformamide (2 mL) at room temperature. The reaction was stirred for 3 h, diluted with methanol (2 mL) and water (2 mL) and stirred for 15 min. The reaction mixture was concentrated in vacuo to dryness and purified by preparative HPLC (Waters Sunfire C18 column 30×150 mm 5 u, eluted with a gradient of 10 to 80% acetonitrile/water/0.1% TFA). Fractions containing the desired product were concentrated to yield a trifluoroacetate salt of (1R,1′R)-2,2′-(5,5′-Bi-1,3-thiazole-2,2′-diylbis(1H-imidazole-4,2-diyl(2S)-2,1-pyrrolidinediyl))bis(N,N-dimethyl-2-oxo-1-phenylethanamine) (18 mg, 0.015 mmol, 34% yield) as an orange solid.

Provenance & Evidence