(RS)-3-(1,2,3,4-tetrahydro-naphthalen-1-yl)-propionic acid

3-(3,4-dihydro-naphthalen-1-yl)-propionic acid

5,6,6a,7,8,9-hexahydro-4H-phenalene

3-(3,4-dihydronaphthalen-1-yl)-4-ethoxy-4-oxobutanoic acid

toluene-4-sulfonic acid-(5,6,7,8,9,10-hexahydro-benzocycloocten-5-ylmethyl ester)