Task: Please give me a molecule SMILES based on the text description.
Description: A molecule that is not permeable through the membrane separating circulating blood and extracellular brain fluid.
Result: CCNC(=NC#N)NCCSCc1ncccc1Br
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#}
CCNC(=NC#N)NCCSCc1ncccc1Br
CCNC(=NC#N)NCCSCc1ncccc1Br
1-[2-[(3-bromopyridin-2-yl)methylsulfanyl]ethyl]-2-cyano-3-ethylguanidine