Task: Answer the multiple-choice question.
Question: Which drug exhibits a 2.120\% 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: COc1cc2c(cc1O)C[C@H]1NCCc3cc4c(c-2c31)OCO4
b: O=C(NC(=S)Nc1ccc2c(c1)OCCO2)c1ccco1
Answer: a. COc1cc2c(cc1O)C[C@H]1NCCc3cc4c(c-2c31)OCO4
{#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#}
COc1cc2c(cc1O)C[C@H]1NCCc3cc4c(c-2c31)OCO4
COc1cc2c(cc1O)C[C@H]1NCCc3cc4c(c-2c31)OCO4
(12R)-17-methoxy-3,5-dioxa-11-azapentacyclo[10.7.1.02,6.08,20.014,19]icosa-1(20),2(6),7,14,16,18-hexaen-16-ol