(4S)-4-[3-(Cyclopentyloxy)-4-methoxyphenyl]pyrrolidin-2-one

R-(-)-Rolipram is a phosphodiesterase IV (PDE4) inhibitor and anti-inflammatory agent with some antidepressant activity. It is the R isomer of (±)-Rolipram (R640040). Potent PDE4 inhibitor.

ChEBI: (-)-rolipram is the (R)-enantiomer of rolipram. It is an enantiomer of a (+)-rolipram.

More active enantiomer of the PDE4 inhibitor rolipram (4-(3-(Cyclopentyloxy)-4-methoxyphenyl)pyrrolidin-2-one ); 2-10-fold more potent than the S-(+) enantiomer ((4S)-4-[3-(Cyclopentyloxy)-4-methoxyphenyl]pyrrolidin-2-one ). Also available as part of the Phosphodiesterase Inhibitor Tocriset™ .

Room temperature