<p>A method for the manufacture of Lovastatin of formula (I) is disclosed. The method comprises of: A. lactonisation of Mevinolinic acid (II) and isolation of impure Lovastatin (I), B. purification of impure Lovastatin (I), C. optionally, repurification of pure Lovastatin (I) from a mixture of alumina and a water miscible solvent.</p>
