Cosmetic and pharmaceutical preparations comprising ascorbic acid derivatives
Use of ascorbic acid derivatives of the formula I 1 where the variables independently of one another have the following meanings: R 1 is hydrogen, C 1 -C 20 -acyl, C 1 -C 12 -alkoxycarbonyl, C 1 -C 12 -alkyl, R 2 is hydrogen, C 1 -C 20 -acyl, C 1 -C 12 -alkoxycarbonyl, C 1 -C 12 -alkyl, where R 1 an...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Use of ascorbic acid derivatives of the formula I
1
where the variables independently of one another have the following meanings:
R
1
is hydrogen, C
1
-C
20
-acyl, C
1
-C
12
-alkoxycarbonyl, C
1
-C
12
-alkyl,
R
2
is hydrogen, C
1
-C
20
-acyl, C
1
-C
12
-alkoxycarbonyl, C
1
-C
12
-alkyl,
where R
1
and R
2
, together with the oxygen atoms to which they are bonded and the carbon atoms bonded to the oxygen atoms, can form an unsubstituted or substituted heterocycle,
R
3
is hydrogen or a cation selected from the group consisting of NH
4
+
, alkali metal and alkaline earth metal cations,
R
4
is C
1
-C
12
-alkoxycarbonyl,
for cosmetic and pharmaceutical preparations is described. |
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