Q: How many hydrogen bond acceptors are there in this compound, calculated according to Lipinski's original rules (i.e., counting N and O atoms)?
 The Chemical has the SMILES CN1N=C(N)c2cn([C@@H]3O[C@H](COP(=O)(O)O)[C@@H](O)[C@H]3O)c3ncnc1c23.
Answer: 13
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CN1N=C(N)c2cn([C@@H]3O[C@H](COP(=O)(O)O)[C@@H](O)[C@H]3O)c3ncnc1c23
CN1N=C(N)c2cn([C@@H]3O[C@H](COP(=O)(O)O)[C@@H](O)[C@H]3O)c3ncnc1c23
[(2R,3S,4R,5R)-5-(5-amino-7-methyl-2,6,7,9,11-pentazatricyclo[6.3.1.04,12]dodeca-1(12),3,5,8,10-pentaen-2-yl)-3,4-dihydroxyoxolan-2-yl]methyldihydrogenphosphate
How many hydrogen bond acceptors are there in this compound, calculated according to Lipinski's original rules (i.e., counting N and O atoms)?