Q: Which USAN substem can this drug or clinical candidate name be matched with?
 The Molecule has the SMILES C[C@@H]1Cc2c(ccc3[nH]ncc23)[C@@H](c2ccc(NC3CN(CCCF)C3)cn2)N1CC(F)(F)F.
Answer: -estr-; -estrant
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
C[C@@H]1Cc2c(ccc3[nH]ncc23)[C@@H](c2ccc(NC3CN(CCCF)C3)cn2)N1CC(F)(F)F
C[C@@H]1Cc2c(ccc3[nH]ncc23)[C@@H](c2ccc(NC3CN(CCCF)C3)cn2)N1CC(F)(F)F
N-[1-(3-fluoropropyl)azetidin-3-yl]-6-[(6S,8R)-8-methyl-7-(2,2,2-trifluoroethyl)-3,6,8,9-tetrahydropyrazolo[4,3-f]isoquinolin-6-yl]pyridin-3-amine
Which USAN substem can this drug or clinical candidate name be matched with?