Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a -1.680\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) CNS(=O)(=O)c1ccc(C)c(S(=O)(=O)NC)c1
(b) Cc1cc(C)cc(Oc2c(C(F)(F)F)oc3cc(OCC(=O)O)ccc3c2=O)c1
(c) O=C(O)c1cnc(-c2ccccc2)nc1-c1ccccc1
(d) Clc1cccc(-c2cc3nc4c(c(N5CCN(c6cnccn6)CC5)n3n2)CCCC4)c1
(e) CCn1c(SCC(=O)NC2CCCC2)nnc1-c1ccco1
Answer: c. O=C(O)c1cnc(-c2ccccc2)nc1-c1ccccc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(O)c1cnc(-c2ccccc2)nc1-c1ccccc1
O=C(O)c1cnc(-c2ccccc2)nc1-c1ccccc1
2,4-diphenylpyrimidine-5-carboxylic acid