To furnish direct proof the peculiar enhancement of catecholaminergic exercise while in the Mind in animals dealt with with a little dose of (−)deprenyl is unrelated to MAO inhibition, we designed within the early '90s a family of deprenyl analogues devoid with the MAO-B inhibitory impact (Knoll et al Anyhow, https://ppap-hcl76421.yomoblog.com/36543544/facts-about-ppap-hcl-revealed