68573-23-9Relevant articles and documents
Synthesis of amide and ester derivatives of cinnamic acid and its analogs: Evaluation of their free radical scavenging and monoamine oxidase and cholinesterase inhibitory activities
Takao, Koichi,Toda, Kazuhiro,Saito, Takayuki,Sugita, Yoshiaki
, p. 1020 - 1027 (2017/11/17)
A series of cinnamic acid derivatives, amides (1–12) and esters (13–22), were synthesized, and structure–activity relationships for antioxidant activity, and monoamine oxidases (MAO) A and B, acetylcholinesterase, and butyrylcholinesterase (BChE) inhibitory activities were analyzed. Among the synthesized compounds, compounds 1–10, 12–18, and rosmarinic acid (23), which contained catechol, o-methoxyphenol or 5-hydroxy-indole moieties, showed potent 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity. Compounds 9–11, 15, 17–22 showed potent and selective MAO-B inhibitory activity. Compound 20 was the most potent inhibitor of MAO-B. Compounds 18 and 21 showed moderate BChE inhibitory activity. In addition, compound 18 showed potent antioxidant activity and MAO-B inhibitory activity. In a comparison of the cinnamic acid amides and esters, the amides exhibited more potent DPPH free radical scavenging activity, while the esters showed stronger inhibitory activities against MAO-B and BChE. These results suggested that cinnamic acid derivatives such as compound 18, p-coumaric acid 3,4-dihydroxyphenethyl ester, and compound 20, p-coumaric acid phenethyl ester, may serve as lead compounds for the development of novel MAO-B inhibitors and candidate lead compounds for the prevention or treatment of Alzheimer’s disease.
N-[(Dihydroxyphenyl)acyl]serotonins as potent inhibitors of tyrosinase from mouse and human melanoma cells
Yamazaki, Yoshimitsu,Kawano, Yasuhiro,Yamanaka, Akiko,Maruyama, Susumu
body text, p. 4178 - 4182 (2010/04/26)
A series of N-acyl derivatives of tyramine, tryptamine, and serotonin were synthesized and tested on anti-melanogenic activity. The serotonin derivatives such as N-caffeoylserotonin (3) and N-protocatechuoylserotonin (9) were inhibitory to tyrosinase from
Serotonin derivatives, major safflower (Carthamus tinctorius L.) seed antioxidants, inhibit Low-Density Lipoprotein (LDL) oxidation and atherosclerosis in apolipoprotein E-deficient mice
Koyama, Naoto,Kuribayashi, Kanna,Seki, Tetsuya,Kobayashi, Katsunori,Furuhata, Yasufumi,Suzuki, Katsuya,Arisaka, Harumi,Nakano, Takashi,Amino, Yusuke,Ishii, Koichi
, p. 4970 - 4976 (2008/03/12)
The effects of defatted safflower seed extract and its phenolic constituents, serotonin derivatives, on atherosclerosis were studied. Ethanol-ethyl acetate extract of safflower seeds (SSE) inhibited low-density lipoprotein (LDL) oxidation induced in vitro