Task: Answer the MCQ question.
Question: Which drug exhibits a -7.191\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a C=CCNC(=S)Nc1cccc(N)c1
b CCOC(=O)CN1C(=O)C(CC)Oc2ccc(Cl)cc21
Answer: a. C=CCNC(=S)Nc1cccc(N)c1
{#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#}
C=CCNC(=S)Nc1cccc(N)c1
C=CCNC(=S)Nc1cccc(N)c1
1-(5-aminophenyl)-3-prop-2-enylthiourea