Compounds represented by formula (I), compounds of the less-polar group of two groups of diastereomers in which the carbon atom indicated by * in formula (II) is an asymmetric carbon atom, salts of the compounds, and solvates of the compounds or salts. The compounds have Nrf2 activating action.
Compounds represented by formula (I), compounds of the less-polar group of two groups of diastereomers in which the carbon atom indicated by * in formula (II) is an asymmetric carbon atom, salts of the compounds, and solvates of the compounds or salts. The compounds have Nrf2 activating action.