Task: Please generate a molecule SMILES based on the description below.
Description: A molecule that is not permeable through the membrane separating circulating blood and extracellular brain fluid.
Result: O=C(Cc1cccs1)N[C@@H]1C(=O)N2C(C(=O)O)=C(CSc3ncn[nH]3)CS[C@H]12
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#}
(6R,7R)-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-3-(1H-1,2,4-triazol-5-ylsulfanylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid