反应详情

温度

25 °C

In a manner similar to that described in Example I, 1.05 grams (0.005 mole) of α-methyldopa, 0.88 gram (0.010 mole) of lithium bromide, 0.5 gram of powdered 4A sieves, 0.98 gram (0.0057 mole) of benzyl bromide and 5.0 grams of N-methylpyrrolidinone were stirred for 65 hours at 25° C. At the end of this period, high pressure liquid chromatographic assay showed an 85 percent yield of the desired benzyl (S)-3-(3,4-dihydroxyphenyl)-2-methylalaninate product.