生命科学。
生命科学
合成路线 1(1. 合成:2899-37-8)
产率:75%
合成条件:With sodium hydroxide; chloro-trimethyl-silane; lithium borohydride In methanol
实验步骤:参考实施例1-46(2S)-2-氨基-4-甲基硫代丁醇(参考化合物No.1-46)的合成:将38ml(300mmol)氯三甲基硅烷滴加到200ml含3.3g的无水四氢呋喃悬浮液中在冰冷条件下(150mmol)硼氢化锂。将反应混合物搅拌30分钟。向反应混合物中逐渐加入7.5g(50mmol)L-甲硫氨酸,然后在室温下搅拌过夜。在冰冷条件下将甲醇进一步加入到反应混合物中,直到氢气的释放停止。在减压下从反应混合物中蒸馏出溶剂。向所得残余物中加入10%氢氧化钠溶液,然后用氯仿萃取两次。将得到的氯仿萃取层用无水硫酸钠干燥后,减压蒸馏除去溶剂,得到5.12g标题化合物No.1-46,收率75%。
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