Task: Answer the multiple choice question.
Query: Which compound exhibits a 7.413\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C(O)/C=C/c1ccccc1Oc1ccccc1
[b] CN(C)CCN1C(=O)c2oc3ccc(Cl)cc3c(=O)c2C1c1cccc(Br)c1
[c] C=CCNC(=O)c1cc2c(=O)n3cc(C)ccc3nc2nc1NCC1CCCO1
[d] NC(=O)C1CCN(C(=O)c2ccc(-c3ccccc3Cl)o2)CC1
Answer: b. CN(C)CCN1C(=O)c2oc3ccc(Cl)cc3c(=O)c2C1c1cccc(Br)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#}
CN(C)CCN1C(=O)c2oc3ccc(Cl)cc3c(=O)c2C1c1cccc(Br)c1
CN(C)CCN1C(=O)c2oc3ccc(Cl)cc3c(=O)c2C1c1cccc(Br)c1
1-(3-bromophenyl)-7-chloro-2-[2-(dimethylamino)ethyl]-1H-chromeno[2,3-c]pyrrole-3,9-dione