产品属性：CAS号：暂无 重量（克）：50 mg 价格（元）：实单询价 时间：2019-11-29 11:32:07 交易状态：等待报价
Lucifer yellow anhydride (100 mg,
0.22 mmol), Fmoc‐d‐Dap (215 mg, 0.66 mmol, 3 eq.), and
lithium acetate buffer (20 mL, 1M, pH 5) were added to a 100 mL round bottle.
This solution was stirred at refluxed for 6 h, followed by the addition of an
aqueous solution of potassium (10 mL, 3.35 M) of to form a precipitate. The
precipitate was filtered, washed two times with cold ethanol, and allowed to
dry. The powder was then dissolved in 5 mL of DMF followed by the addition of
DBU (69 μL, 0.46 mmol, 2.1 eq) and stirred at room temperature for 1 h. The
solvent was removed in vacuo and the product was purified via reverse‐phase HPLC (0–90% acetonitrile over
30 min, RT~7 min) The pure fractions were lyophilized to yield the desired
product as a yellow solid as a TFA salt (70.3 mg, 56% yield).