Task: Please generate a SMILES based on the description below.
Description: The molecule is a sesquiterpene lactone that is (3R,3a'R)-decahydrospiro[furan-3,2'-indene] carrying an oxo, methylene, acetoxy, [(2S)-2-methylbutanoyl]oxy, methyl and methyl groups at positions 2, 4, 3', 4', 7' and 7a', respectively. It has a role as a plant metabolite. It is a gamma-lactone, an acetate ester, a sesquiterpene lactone and an oxaspiro compound.
Result: C=C1COC(=O)[C@]12C[C@@]1(C)[C@H]([C@@H](OC(=O)[C@@H](C)CC)CC[C@@H]1C)[C@H]2OC(C)=O
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
[(2R,3R,3aR,4S,7S,7aR)-3-acetyloxy-7,7a-dimethyl-4'-methylidene-2'-oxospiro[3,3a,4,5,6,7-hexahydro-1H-indene-2,3'-oxolane]-4-yl] (2S)-2-methylbutanoate
The molecule is a sesquiterpene lactone that is (3R,3a'R)-decahydrospiro[furan-3,2'-indene] carrying an oxo, methylene, acetoxy, [(2S)-2-methylbutanoyl]oxy, methyl and methyl groups at positions 2, 4, 3', 4', 7' and 7a', respectively. It has a role as a plant metabolite. It is a gamma-lactone, an acetate ester, a sesquiterpene lactone and an oxaspiro compound.