Task: Answer the MCQ question.
Query: Which drug exhibits a 20.645\% 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) Cc1cc(Nc2ccc3ccccc3c2)n2ncnc2n1
(b) O=C(N/N=C1\CC(c2ccccc2)Oc2ccccc21)c1ccc(O)cc1
(c) O=C(CSc1ccc2nnc(-c3ccncc3)n2n1)Nc1ccc2c(c1)OCCO2
(d) COC(=O)C1=C(c2ccc(OCc3ccccc3)cc2)C[C@@H]2CC[C@H]1N2C(=O)NCc1ccc(N(C)C)cc1
Answer: b. O=C(N/N=C1\CC(c2ccccc2)Oc2ccccc21)c1ccc(O)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#}
O=C(N/N=C1\CC(c2ccccc2)Oc2ccccc21)c1ccc(O)cc1
O=C(N/N=C1\CC(c2ccccc2)Oc2ccccc21)c1ccc(O)cc1
4-hydroxy-N-[(E)-(2-phenyl-2,3-dihydrochromen-4-ylidene)amino]benzamide