申请人:CLARIANT INTERNATIONAL LTD.
公开号:EP1531156A1
公开(公告)日:2005-05-18
A compound of Formula (I), as defined in the specification, and a method for its synthesis. The method includes providing an inert environment, minimizing exposure of the reaction environment to visible light and reacting ascorbic acid with solvent and a compound of the Formula (II), as defined in the specification. The method of the present invention produces increased yields and a compound having increased stability and the same or greater bioactivity than ascorbic acid. The compound formed by the method of the present invention is capable for use in anhydrous cosmetic, dermatological and pharmaceutical compositions as an active agent for combating aging of the skin and improving its aesthetic appearance.
本发明涉及一种化合物及其合成方法,该化合物的化学式为(I),该方法包括提供一个惰性环境,最小化反应环境对可见光的暴露,并将抗坏血酸与溶剂和化学式为(II)的化合物按照规范中定义的方法进行反应。本发明的方法产生了更高的产量和具有增加稳定性的化合物,其生物活性与抗坏血酸相同或更高。本发明方法制得的化合物可用作无水化妆品、皮肤科和制药组合物中的活性成分,用于抗衰老和改善皮肤的美观外观。