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:
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


question:
Phosphorylation and up-regulation of diacylglycerol kinase gamma via its interaction with protein kinase C gamma.
answer:
diacylglycerol


question:
Preclinical and clinical development of the oral multikinase inhibitor sorafenib in cancer treatment.
answer:

sorafenib