化学合成;生命科学。
化学合成; 生命科学
合成路线 1(1. 合成:7146-15-8)
产率:75%
合成条件:at 0 - 22℃; for 26 h;
实验步骤:一般步骤:向0-5°的100mL干燥甲醇中的5g D-氨基酸悬浮液中滴加8-10mL亚硫酰氯,将混合物搅拌2小时,在20-22°保持24小时。 在30-40°真空下蒸发溶剂,将残余物与无水乙醚混合,过滤,干燥,并从甲醇 - 乙醚混合物中重结晶。 D-缬氨酸甲酯盐酸盐。 产率75%,mp155-156°。 -15±1°(1.0,EtOH)。 Literaturedata [14]: - 15.5±2°(2.0,2)。 IR(,cm-1):1730,1575。
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