2.7.1.49 0.014 - (6R)-6-[(2E)-6-(4-ethynylphenyl)-4-oxohex-2-en-1-yl]-5,6-dihydro-2H-pyran-2-one pH not specified in the publication, temperature not specified in the publication 722048 2.7.1.49 0.025 - (6R)-6-[(2E)-4-oxo-6-phenylhex-2-en-1-yl]-5,6-dihydro-2H-pyran-2-one pH not specified in the publication, temperature not specified in the publication 722048 2.7.1.49 0.032 - (6S)-6-[(2E)-6-(4-ethynylphenyl)-4-oxohex-2-en-1-yl]tetrahydro-2H-pyran-2-one pH not specified in the publication, temperature not specified in the publication 722048