Task: Please create a SMILES based on the description below.
Description: A molecule that is not permeable through the membrane separating circulating blood and extracellular brain fluid.
Result: Cc1nnc(SCC2=C(C(=O)OCc3oc(=O)oc3C)N3C(=O)C(NC(=O)C(OC(=O)C(C)N)c4ccccc4)C3SC2)s1
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#}
(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 7-[[2-(2-aminopropanoyloxy)-2-phenylacetyl]amino]-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate