Ethyl 2-ethoxy-3-(4-hydroxyphenyl)propanoate → (2S)-2-Ethoxy-3-(4-hydroxyphenyl)propanoic Acid Ethyl (2R)-2-ethoxy-3-(4-hydroxyphenyl)propanoate

Participants

Reaction Steps

To ethyl (2RS) (+/−) 2-ethoxy-3-(4-hydroxyphenyl)-propanoate (2.5 mg) in citrate-phosphate buffer 0.1M (400 μl) (pH as indicated below) was added the Protease 2 (or Aspergillopepsin I) from Aspergillus aculeatus expressed in Aspergillus oryzae also containing secreted enzymes from Aspergillus oryzae (WO95/02044; Handbook of Proteolytic Enzymes, Barrett, Rawlings, and Woessner Eds., 1998, Academic Press ref.1 chap. 294) (100 μl, 1 mg protein/ml final concentration). The reaction mixture was shaken at room temperature and analysed at different times. The reaction mixture was analysed by the gradient HPLC method 1 and by the chiral HPLC method 5.

Provenance & Evidence