Cryptosporiopsin

(1S)-3,5β-Dichloro-1α-hydroxy-4-oxo-2-[(E)-1-propenyl]-2-cyclopentene-1-carboxylic acid methyl ester

(1S)-1-Hydroxy-2-[(E)-1-propenyl]-3,5β-dichloro-4-oxo-2-cyclopentene-1β-carboxylic acid methyl ester