(4R,6R)-6-(2-((1S,2S)-2,6-dimethyl-1,2,3,4-tetrahydronaphthalen-1-;(4R,6R)-6-(2-((1S,2S)-2,6-dimethyl-1,2,3,4-tetrahydronaphthalen-1-yl)ethyl)-4-hydroxytetrahydro-2H-pyran-2-one and (4R,6R)-6-(2-((R)- 2,6-dimethyl-5,6,7,8-tetrahydronaphthalen-1-yl)ethyl)-4-hydroxy tetrahydro-2H-pyran-2-one