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.

Q: Transdermal selegiline for the treatment of major depressive disorder.

A: selegiline
****
Q: Probing the Role of the Vancomycin E-Ring Aryl Chloride: Selective Divergent Synthesis and Evaluation of Alternatively Substituted E-Ring Analogues.

A: Vancomycin
****
Q: Synthesis and biological evaluation of some novel resveratrol amide derivatives as potential anti-tumor agents.

A:
resveratrol amide
****