Q: Determine the type of availability for this drug.
 The Chemical can be represented with the SMILES Nc1nc(N)c2ncn([C@H]3CO[C@@H](CO)O3)c2n1.
Result: unknown
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Nc1nc(N)c2ncn([C@H]3CO[C@@H](CO)O3)c2n1
Nc1nc(N)c2ncn([C@H]3CO[C@@H](CO)O3)c2n1
[(2R,4R)-4-(2,6-diaminopurin-9-yl)-1,3-dioxolan-2-yl]methanol
Determine the type of availability for this drug.