GEL COMPOSITIONS

摘要

The invention relates to gel composition comprising a gelating agent and a solvent. The gelating agent is a compound of general formula (I): wherein: R¹is hydrogen or C_1-14 alkyl; R³is OH or a group; R⁴ is hydrogen or C_1-6 alkyl, optionally substituted with OR⁹, COR⁹ or COOR⁹; R⁹ is hydrogen, C_1-6 alkyl or benzyl; R² is hydrogen, C_1-6 alkyl or benzyl, either of which may optionally be substituted with OH or, when R³ is R² may also be R⁷; R⁷ is a 5 or 6 membered aromatic or heteroaromatic ring system which is optionally further substituted with C_1-6 alkyl, benzyl or hydroxy; or a salt thereof.