反应详情

Preparation of example 90 from the title compound of Example 7 (hydrochloride) (41 mg, 0.131 mmol), (2E,4E)-hexa-2,4-dienoic acid (18 mg, 0.157 mmol), triethylamine (0.055 mL, 0.393 mmol), and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (60 mg, 0.157 mmol) in CH2Cl2 (0.4 mL) and N,N-dimethylformamide (0.4 mL) was carried out analogously to Example 11. Silica gel chromatography (eluted with 2:1 hexane:acetone), also in an analogous manner, after a final trituration with methanol afforded the title compound (8 mg, 0.022 mmol) as a yellow powder in 16% yield.

1. washSilica gel chromatography (eluted with 2:1 hexane:acetone)