Patent ID: 9655828
Date: 2017-05-23
CPC Classifications: A61K,A61Q,C07D,D06P

Claim:
1. A method for tanning skin, comprising tanning said skin by administering these to an effective amount of at least one compound of the formula I where R a straight-chain or branched alkyl group having 1 to 30 C atoms, and either R or R a) by at least one straight-chain or branched alkyl group having 1 to 30 C atoms and/or b) by at least one aryl group having 6 to 12 C atoms, where the aryl group having 6 to 12 C atoms may be substituted by alkyl, OH, Oalkyl, NH R or an aryl group having 6 to 12 C atoms, where the aryl group having 6 to 12 C atoms may be substituted by alkyl, vinyl, OH, Oalkyl, NH a straight-chain or branched alkenyl group having 2 to 30 C atoms, which may be substituted by an aryl group having 6 to 12 C atoms, where the aryl group having 6 to 12 C atoms may be substituted by alkyl, OH, Oalkyl, NH alkyl denotes a straight-chain or branched alkyl group having 1 to 30 C atoms, and/or salts, tautomers, stereoisomers and/or solvates thereof, including mixtures thereof in all ratios, as self-tanning substance.