Carnitine-esters from the mushroom Suillus laricinus

Carnitine-esters (1-8) including a compound, (R)-3-hydroxybutanoyl-(R)-carnitine (5), were isolated from the mushroom Suillus laricinus. One of them, (R)-3-hydroxy-2-methylpropanoyl-(R)-carnitine (4), promoted hyaluronan-degradation by human skin fibroblasts.