Abstract
Secondary alcohols were converted to their corresponding esters with N-Cbz-L-amino acids by Celite-immobilized protease or lipase in organic solvents at pH 7.5. The esterification of 2-butanol and 2-phenylethanol were achieved up to 71% yields. The optimal reaction condition for Aspergillus oryzae protease (AOP) catalyzed synthesis of N-Cbz-L-aspartyl- sec-butyl ester (97.6 de) was at pH 7.5 and a duration of 96 hours.
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Shih, IL., Chiu, LC., Lai, C. et al. Enzymes catalyzed esterification of N-protected amino acids with secondary alcohols. Biotechnology Letters 19, 857–859 (1997). https://doi.org/10.1023/A:1018329402408
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DOI: https://doi.org/10.1023/A:1018329402408