PROBLEM TO BE SOLVED: To provide a novel compound having wrinkle improvement effect.SOLUTION: There is provided a compound represented by the general formula (5), a stereoisomer thereof or a pharmaceutically acceptable salt thereof. (5), where Rrepresents a hydrogen atom or a linear or branched alkyl group having 1 to 8 carbon atoms, Rrepresents -SOH or -SO-X, Xrepresents an aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic part having 5 to 12 carbon atoms, of which the hydrogen atom or a carbon atom may be substituted by a heteroatom, Rrepresents a hydrogen atom or an acyl group having a linear or branched alkyl chain having 1 to 8 carbon atoms, Rrepresents a toluyl group, m represents 0 and n represents an integer of 1 or 2.SELECTED DRAWING: Figure 3【課題】シワ改善作用を有する新規化合物を提供する。【解決手段】一般式(5)で表される化合物、その立体異性体、又はそれらの薬理学的に許容される塩。[式中、R15は、水素原子、又は炭素数1~8の直鎖若しくは分岐のアルキル基を表し、R16は、-SO3H、又は-SO2-X4を表し、前記X4は、水素原子若しくは炭素原子が複素原子で置換されていてもよい、炭素数1~8の脂肪族炭化水素基若しくは炭素数5~12の芳香族部を表し、R17は、水素原子、又は炭素数1~8の直鎖若しくは分岐のアルキル鎖を有するアシル基を表し、R18は、トルイル基を表し、mは、0を表し、nは、1又は2の整数を表す。]【選択図】図3