instruction:
In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.
question:
Cholestatic effect of epigallocatechin gallate in rats is mediated via decreased expression of Mrp2.
answer:
epigallocatechin gallate


question:
Rasagiline: a novel anti-Parkinsonian monoamine oxidase-B inhibitor with neuroprotective activity.
answer:
monoamine


question:
Characterization of the substrate mimic bound to engineered prostacyclin synthase in solution using high-resolution NMR spectroscopy and mutagenesis: implication of the molecular mechanism in biosynthesis of prostacyclin.
answer:

prostacyclin