2-<(3,8-Dimethyl-2-methoxy-5,6-dihydroxy-7,8-dihydro)-5-naphthyl>propionic acid ethylester

(+)-aristelegone B

2-(6-Hydroxy-4,7-dimethyl-3,4-dihydro-naphthalen-1-yl)-propionic acid ethyl ester

2-[1,2-Dihydroxy-4,7-dimethyl-6-(tetrahydro-pyran-2-yloxy)-1,2,3,4-tetrahydro-naphthalen-1-yl]-propionic acid ethyl ester