Task: Please give me a molecule SMILES based on the description.
Description: A molecule that is permeable through the membrane separating circulating blood and extracellular brain fluid.
Result: c1ccc2c(c1)CCN1CCNCC21
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#}
c1ccc2c(c1)CCN1CCNCC21
c1ccc2c(c1)CCN1CCNCC21
2,3,4,6,7,11b-hexahydro-1H-pyrazino[2,1-a]isoquinoline