Task: Please give me a molecule SMILES based on the description below.
Description: A molecule that is permeable through the membrane separating circulating blood and extracellular brain fluid.
Result: Nc1nc(=O)c2ncn(COCCO)c2[nH]1
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: A molecule that is {p_np#not &NULL}{p_np__names__adjective}.
Result: {SMILES#}
Nc1nc(=O)c2ncn(COCCO)c2[nH]1
Nc1nc(=O)c2ncn(COCCO)c2[nH]1
2-amino-9-(2-hydroxyethoxymethyl)-3H-purin-6-one