Task: Please create a SMILES based on the text description.
Description: A molecule that is permeable through the membrane separating circulating blood and extracellular brain fluid.
Result: O=NN(CCCl)C(=O)NC1CCCCC1
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#}
O=NN(CCCl)C(=O)NC1CCCCC1
O=NN(CCCl)C(=O)NC1CCCCC1
1-(2-chloroethyl)-3-cyclohexyl-1-nitrosourea