The Synthesis of Some Novel N-[α-(Isoflavone-7-O-) Acetyl]Amino Acid Derivatives

A series of novel N-[α-(isoflavone-7-O-)acetyl] amino acid methyl esters were prepared from the efficient and regioselective alkylation of isoflavones with chloroacetyl amino acid derivatives under mild condition.

壳聚糖在日用化妆品中的应用

壳聚糖又称N-乙酰葡萄糖胺,对皮肤无任何刺激性,可以改善皮肤粗糙角质化,有促进皮肤保湿成分玻尿酸生成的作用而起到保湿和抗皱,增加皮肤水分和弹性;壳聚糖本身就是玻尿酸合成的原料,对酪氨酶和黑色素的抑制起到美白效果,能有效增强巨噬细胞的吞噬能力,从而增强免疫功能。因此,被广泛应用到日用化妆品行业中。