You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (3R)-5-[(1S,4aR,7S,8aS)-7-hydroxy-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpentanoic acid using the IUPAC nomenclature.
user
C20H34O3
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