Beilstein J. Org. Chem.2008,4, No. 31, doi:10.3762/bjoc.4.31
derivative 62 (Scheme 12), which contains aldehyde, carboxylic acid and hydroxymethyl groups as pharmacophores. The dihedral angles of CHO-CH2-CH2-COOH in the cyclopentane analog are very close to those of the carbon skeleton in sordaricin.
The synthesis of 62 started with commercially available (+)-3,9