User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a linear-fused organic heterotetracyclic compound consisting of a [1,3,2]dioxaphosphinane fused to a pyran ring which is in turn fused to a pteridine ring system. It is an organic heterotetracyclic compound, an oxacycle and an organonitrogen heterocyclic compound.
Assistant: This is a molecule that fits your description: Nc1nc2nc3c(nc2c(=O)[nH]1)C(O)=C1OP(=O)(O)OCC1O3
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
Nc1nc2nc3c(nc2c(=O)[nH]1)C(O)=C1OP(=O)(O)OCC1O3
5-amino-11,14-dihydroxy-14-oxo-13,15,18-trioxa-2,4,6,9-tetraza-14λ5-phosphatetracyclo[8.8.0.03,8.012,17]octadeca-1,3(8),4,9,11-pentaen-7-one
The molecule is a linear-fused organic heterotetracyclic compound consisting of a [1,3,2]dioxaphosphinane fused to a pyran ring which is in turn fused to a pteridine ring system. It is an organic heterotetracyclic compound, an oxacycle and an organonitrogen heterocyclic compound.