Question: Please describe this drug.
Constraint: The Chemical can be represented with the SMILES Nc1ncnc2c1nc(Cl)n2[C@@H]1O[C@@H]2COP(=O)(O)O[C@H]2[C@H]1O.
Answer: Tocladesine has been used in trials studying the treatment of Colorectal Cancer and Multiple Myeloma and Plasma Cell Neoplasm.
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Nc1ncnc2c1nc(Cl)n2[C@@H]1O[C@@H]2COP(=O)(O)O[C@H]2[C@H]1O
C1[C@@H]2[C@H]([C@H]([C@@H](O2)N3C4=NC=NC(=C4N=C3Cl)N)O)OP(=O)(O1)O
(4aR,6R,7R,7aS)-6-(6-amino-8-chloropurin-9-yl)-2-hydroxy-2-oxo-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-7-ol
Please describe this drug.