Task: Answer the following question about the molecule with SMILES C[C@]12CC[C@H]3[C@@H](CCC4=CC(=O)CC[C@@]43C)[C@@H]1CC[C@@H]2OC(=O)CCC1CCCC1.
Request: Which USAN substem can this drug or clinical candidate name be matched with?
Completion: -ster-; -terone
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
C[C@]12CC[C@H]3[C@@H](CCC4=CC(=O)CC[C@@]43C)[C@@H]1CC[C@@H]2OC(=O)CCC1CCCC1
C[C@]12CC[C@H]3[C@@H](CCC4=CC(=O)CC[C@@]43C)[C@@H]1CC[C@@H]2OC(=O)CCC1CCCC1
[(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]3-cyclopentylpropanoate
Which USAN substem can this drug or clinical candidate name be matched with?