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US 7,741,496 B2Granted
Ascorbic acid derivatives
AssigneeCorum Inc.
InventorsWei-Chuan Tsai, Chen-Yin Chen, Ming-Yi Chiu, Yi-Fan Ling, Nai-Hsuan Hsu
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Abstract
The present invention discloses the ascorbic acid derivatives. The inventive molecules that combine with one or two hydrophilic headgroups connected by a hydrophobic spacer can increase skin penetration.
Claims6
An ascorbic acid derivative, wherein the ascorbic acid derivative has a general formula as following:
- wherein X is selected from the group consisting one of the following the G group, hydrogen, linear alkyl moiety, branched alkyl moiety, cyclic alkyl moiety;
- n ranges from 2 to 12;
- and
- R1 is selected from the group consisting one of the following:
- hydrogen, alkyl group having 1 to 4 carbon, linear alkyl moiety, branched alkyl moiety.
2 more elements
An ascorbic acid derivative, wherein the ascorbic acid derivatives has a general formula as following:
- wherein X is selected from the group consisting one of the following:
- the G′ group, hydrogen, linear alkyl moiety, branched alkyl moiety, cyclic alkyl moiety;
- n ranges from 2 to 12;
- and
- R1 is selected from the group consisting one of the following:
- hydrogen, alkyl group having 1 to 4 carbon, linear alkyl moiety, branched alkyl moiety.
3 more elements
Dependencies are inferred from the claim text.