Stereochemistry of enzymic cyclisation of 3-methyl-cis,cis-muconic acid to form 3- and 4-methylmuconolactone
Abstract
Enzyme-catalysed cyclisation of 3-methyl-cis,cis-muconic acids proceeds by syn addition of carboxyl groups to double bonds to form (4S)-3-methylmuconolactone in Aspergillus niger and (4S)-4-methylmuconolactone in Pseudomonas putida.