HOE 234

Rilmakalim

(3S,4R)-3-Hydroxy-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)-6-(phenylsulfonyl)chroman

(3S)-3,4-Dihydro-2,2-dimethyl-4α-(2-oxo-1-pyrrolidinyl)-6-phenylsulfonyl-2H-1-benzopyran-3β-ol