Question: Please describe this drug.
 The Molecule has the SMILES CC(C)(NC(=O)C1=C(O)[C@@H]2Oc3c(O)ccc4c3[C@@]23CCN(CC2CC2)[C@H](C4)[C@]3(O)C1)c1nc(-c2ccccc2)no1.
Result: Naldemedine is a peripherally acting opioid antagonist which is used to treat constipation caused by chronic opioid use. Naldemedine has not been linked to serum enzyme elevations during therapy or to clinically apparent liver injury.
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CC(C)(NC(=O)C1=C(O)[C@@H]2Oc3c(O)ccc4c3[C@@]23CCN(CC2CC2)[C@H](C4)[C@]3(O)C1)c1nc(-c2ccccc2)no1
CC(C)(C1=NC(=NO1)C2=CC=CC=C2)NC(=O)C3=C([C@H]4[C@@]56CCN([C@@H]([C@@]5(C3)O)CC7=C6C(=C(C=C7)O)O4)CC8CC8)O
(4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,7,9-trihydroxy-N-[2-(3-phenyl-1,2,4-oxadiazol-5-yl)propan-2-yl]-1,2,4,5,7a,13-hexahydro-4,12-methanobenzofuro[3,2-e]isoquinoline-6-carboxamide
Please describe this drug.