Task: Answer the multiple-choice question.
Question: Which drug exhibits a 1.038\% 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, b, c, or d without using any additional words.
Options:
(a) Nc1ccc(S(N)(=O)=O)cc1N.O=S(=O)(O)O
(b) CC1CN(C(=O)CSc2nc3cc(Cl)ccc3o2)CC(C)O1
(c) O=C(CCCO)N/N=C/c1cc(Br)ccc1O
(d) Cc1cccc(N/C=C/c2onc(C)c2[N+](=O)[O-])c1
Answer: b. CC1CN(C(=O)CSc2nc3cc(Cl)ccc3o2)CC(C)O1
{#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#}
2-[(5-chloro-1,3-benzoxazol-2-yl)sulfanyl]-1-(2,6-dimethylmorpholin-4-yl)ethanone