A .beta.,.gamma.-dihydropolyprenyl alcohol derivative having the formula: ##STR1## wherein n is an integer of 5 to 7 and R is hydrogen, a lower alkyl group or an aliphatic or aromatic acyl group, is new and useful as a prophylactic therapeutic agent for human and animal immuno-deficiency deseases and phylactic agent against human and animal infectious deseases. Another disclosed polyprenyl compound is also useful as the same agent.
一种具有以下结构式的.beta.,.gamma.-二氢聚
戊烯醇衍
生物:##STR1## 其中n为5至7的整数,R为氢、较低的烷基或脂肪族或芳香族酰基,作为一种预防和治疗人和动物免疫缺陷疾病的药物和预防人和动物传染病的药物。另一种披露的聚
戊烯化合物也可以作为相同的药物。