4H-benzochromene derivatives as novel tyrosinase inhibitors and radical scavengers: synthesis, biological evaluation, and molecular docking analysis
作者:Somaye Karimian、Sara Ranjbar、Mahsa Dadfar、Mahsima Khoshneviszadeh、Maryam Gholampour、Amirhossein Sakhteman、Mehdi Khoshneviszadeh
DOI:10.1007/s11030-020-10123-0
日期:2021.11
A series of ethyl 2-amino-4H-benzo[h]chromene-3-carboxylate derivatives, having phenyl ring with diverse substituents at C4 position of 4H-benzochromene nucleus, were synthesized via one-pot three-component reaction between various aromatic aldehydes, α-naphthol, and ethyl cyanoacetate. The synthesized compounds were screened for their antityrosinase activity. Compound 4i, bearing 4-dimethylamino substitution on C4-phenyl ring, was the most potent tyrosinase inhibitor (IC50 = 34.12 μM). The inhibition kinetic analysis of 4i indicated that the compound was a competitive tyrosinase inhibitor. Compounds 4a, 4g, 4i and 4j were the effective radical scavengers with EC50s in the range of 0.144–0.943 mM. According to the in silico drug-like and ADME predictions, 4i can be considered as a suitable candidate. Molecular docking results confirmed that the derivative was well accommodated within the mushroom tyrosinase binding site. Therefore, 4i can be introduced as a novel tyrosinase inhibitor that might be a promising lead in medicine, cosmetics, and food industry.
通过各种芳香醛、α-萘酚和氰乙酸乙酯之间的单锅三组分反应,合成了一系列 2-氨基-4H-苯并[h]色烯-3-羧酸乙酯衍生物。对合成的化合物进行了抗酪氨酸酶活性筛选。C4-苯基环上具有 4-二甲基氨基取代的化合物 4i 是最有效的酪氨酸酶抑制剂(IC50 = 34.12 μM)。4i 的抑制动力学分析表明,该化合物是一种竞争性酪氨酸酶抑制剂。化合物 4a、4g、4i 和 4j 是有效的自由基清除剂,其 EC50 在 0.144-0.943 mM 之间。根据硅学类药物和 ADME 预测,4i 可被视为合适的候选化合物。分子对接结果证实,该衍生物能很好地与蘑菇酪氨酸酶结合。因此,4i 可以作为一种新型的酪氨酸酶抑制剂,在医药、化妆品和食品工业中大有可为。