Task: Answer the multiple choice question.
Question: Which drug exhibits a 11.567\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) CCC(C)(C)NC(=O)C(c1ccc(OC)cc1)N(Cc1ccco1)C(=O)CCC(=O)Nc1cc(C)on1
(b) COc1ccc(NC(=O)N2CCN(CCC#N)CC2)cc1
(c) C=CCn1c(Cc2cccs2)nnc1SCC(=O)Nc1cccc(OC)c1
(d) COC(=O)c1c(O)ccc(Oc2ccccc2)c1C(=O)OC
(e) COc1cc(SC)ccc1C(=O)NCC1CCCO1
Answer: b. COc1ccc(NC(=O)N2CCN(CCC#N)CC2)cc1
{#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#}
4-(2-cyanoethyl)-N-(4-methoxyphenyl)piperazine-1-carboxamide