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考察了10 ml丙酮-四氢呋喃(85/15,体积比)混合溶剂体系中,各关键因素对脂肪酶Lipozyme TL IM催化5-氟尿苷5’-棕榈酸酯合成反应的影响.结果表明,添加分子筛能有效除去溶剂中的水分,从而极人地提高了目标产物收率.在最优反应条件下,该体系被成功放大至200 ml (5-氟尿苷克级用量),产物收率高达99%;同时脂肪酶Lipozyme TL IM表现出优异的操作稳定性,重复使用10批次后,产物收率仍可达97%.另外,填充床反应器的体积生产效率为22.4 g/(L·h),远高于批次反应时的0.5 g/(L·h).

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