A process for the manufacture of new crystalline salts of N-[2-(dimethylamino)ethyl]-1,2-dithiolane-3-pentanamide (racemic and chiral forms) is described. Such salts are stable, crystalline and have very good solubility in water. The salts exhibit antioxidant properties. They inhibit collagenase and elastase enzymes. They have excellent anti acne activity in addition tyrosinase inhibition. They are, by themselves and in combination with other known agents, important cosmetic ingredients.
描述了一种制造新晶体盐N-[2-(二甲基
氨基)乙基]-1,2-二
硫杂环戊酰胺(消旋体和手性形式)的方法。这些盐稳定、结晶并在
水中具有非常好的溶解性。这些盐具有抗氧化性能,抑制
胶原酶和
弹性蛋白酶的活性。它们在抑制
酪氨酸酶的同时具有出色的抗痘活性。它们作为单独使用或与其他已知成分结合使用,是重要的化妆品成分。