Potassium Phosphate, Tribasic → 1-Benzothiazol-6-yl-4-methyl-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one

関与物質

反応手順

Using the same reaction conditions and work up as described in Example 1, step-3,1-benzothiazol-6-yl-4-methyl-imidazolidin-2-one (I-167b: 150 mg, 0.643 mmol) was refluxed with 3-iodo-4-methyl-pyridine (155 mg, 0.708 mmol), copper iodide (12.21 mg, 0.0643 mmol), N,N′-dimethyl-cyclohexane-1,2-diamine (27.39 mg, 0.192 mmol), potassium phosphate (341.5 mg, 1.607 mmol) and 1,4-dioxane (5 mL) at 120° C. for 12 hours to afford the crude product. The reaction was monitored by TLC (10% MeOH in chloroform). Purification by column chromatography on silica gel (3% methanol in chloroform) followed by preparative HPLC afforded 34 mg of the product (16.66% yield).

情報源と証拠