1. A preventive and / or therapeutic agent for a hangover syndrome containing the compound shown below (formula I): wherein R represents a hydrogen atom or an acyl group and R represents a hydrogen atom, a linear or branched alkyl group, a cycloalkyl group, an aryl group or an aralkyl group or its salt. 2. The prophylactic and / or therapeutic agent for a hangover syndrome according to claim 1, characterized in that R is selected from the group consisting of a hydrogen atom, an alkanoyl group having 1-8 carbon atoms, and an aroyl group having 7-14 carbon atoms, and R is selected from the group consisting of a hydrogen atom, a linear or branched alkyl group having 1-8 carbon atoms, a cycloalkyl group having 3-8 carbon atoms, an aryl group having 6-14 carbon atoms, and an aralkyl group having 7-15 carbon atoms. 3. The prophylactic and / or therapeutic agent for a hangover syndrome according to claim 1, characterized in that R is selected from the group consisting of a hydrogen atom, a formyl group, an acetyl group, a propionyl group and a butyryl group, and R is selected from the group consisting of a hydrogen atom, a methyl group, ethyl group, propyl group, butyl group and pentyl group. 4. The prophylactic and / or therapeutic agent for a hangover syndrome according to claim 1, characterized in that R is a hydrogen atom and R is selected from the group consisting of a hydrogen atom, a methyl group, an ethyl group, a propyl group, a butyl group and a pentyl group. The prophylactic and / or therapeutic agent for a hangover syndrome according to claim 1, characterized by1. Профилактическое и/или терапевтическое средство от похмельного синдрома, содержащее соединение, показанное ниже (формула I):,где Rпредставляет собой атом водорода или ацильную группу, и Rпредставляет собой атом водорода, линейную или разветвленную алкильную группу, циклоалкильную группу, арильную группу или аралкильную группу или его соль.2. Профилактическое и/или терапевтическое средство от похмельно