| Autor: |
Jaeuk Sim, Srinu Lanka, Jeong-Woong Jo, Chhabi Lal Chaudhary, Manjunatha Vishwanath, Chan-Hyun Jung, Young-Hee Lee, Eun-Yeong Kim, Young-Soo Kim, Soon-Sil Hyun, Hee-Soon Lee, Kiho Lee, Seung-Yong Seo, Mayavan Viji, Jae-Kyung Jung |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Pharmaceuticals, Vol 14, Iss 11, p 1176 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1424-8247 |
| DOI: |
10.3390/ph14111176 |
| Popis: |
In continuation of studies for α-MSH stimulated melanogenesis inhibitors, we have evaluated the design, synthesis, and activity of a new series of chlorogenic acid (CGA) analogues comprising pyridine, pyrimidine, and diacyl derivatives. Among nineteen synthesized compounds, most of them (fifteen) exhibited better inhibitions of melanin formation in B16 melanoma cells. The results illustrated that a pyridine analogue 6f and a diacyl derivative 13a of CGA showed superior inhibition profiles (IC50: 2.5 ± 0.7 μM and 1.1 ± 0.1 μM, respectively) of α-MSH activities than positive controls, kojic acid and arbutin (IC50: 54 ± 1.5 μM and 380 ± 9.5 μM, respectively). The SAR studies showed that both –CF3 and –Cl groups exhibited better inhibition at the meta position on benzylamine than their ortho and para positions. In addition, the stability of diacyl analogues of CGA in methanol monitored by HPLC for 28 days indicated the steric bulkiness of acyl substituents as a key factor in their stability. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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