An objective of the present invention is to provide a specific compound and composition for the prevention or therapy of diseases associated with immunodeficiency.
Isoflavan derivatives which are a glycyrrhiza extract and chemical derivatives thereof, i.e., a compound represented by general formula (II):
[where R1, R2, R3, and R4 may be identical with or different from one another and may each be hydrogen, an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an acyl group which may be substituted, an aralkyl group which may be substituted, or a tri-substituted silyl group; G1, G2, and G3 may be identical with or different from one another and may each be a hydrogen, an acyl group which may be substituted, or an aliphatic hydrocarbon group which may be substituted; symbol (*) indicates the presence of an asymmetric carbon atom, meaning an R form, an S form, or a mixture thereof], or a salt thereof, or a hydrate thereof has immunoactivating actions, and is expected to provide effects as a biophylaxis function promoter by way of lymphocyte function promoting actions and bone marrow function promoting actions.
本发明的目的是提供一种预防或治疗与免疫缺陷有关疾病的特定化合物和组合物。
异黄烷衍
生物是一种甘草
提取物及其
化学衍
生物,即通式(II)所代表的化合物:
[其中 R1、R2、R3 和 R4 可以彼此相同或不同,并且可以分别为
氢、可被取代的烷基、可被取代的
烯基、可被取代的炔基、可被取代的酰基、可被取代的芳烷基或三取代
硅烷基;G1、G2 和 G3 可以彼此相同或不同,可以分别为
氢、可被取代的酰基或可被取代的脂族烃基;符号(*)表示存在不对称
碳原子,意指 R 形式、S 形式或其混合物],或其盐,或其
水合物具有免疫激活作用,并有望通过淋巴细胞功能促进作用和骨髓功能促进作用提供
生物预防功能
促进剂的效果。