A benzonphthalene compound has the formula ##STR1## wherein R.sub.1 represents ##STR2## or (ii) --CH.sub.2 OH; R.sub.6 represents ##STR3## or OR.sub.7 wherein R.sub.7 represents hydrogen, alkyl having 1-20 carbon atoms, monohydroxyalkyl or polyhydroxyalkyl, r' or r" represent hydrogen, lower alkyl, mono or polyhydroxyalkyl, aryl or a residue of an amino acid or a sugar, or together form a heterocycle; R.sub.2 represents hydrogen, alkyl having 1-15 carbon atoms, alkoxy having 1-4 carbon atoms or a cycloaliphatic radical; R.sub.3 represents hydrogen, hydroxy, alkyl having 1-4 carbon atoms, alkoxy having 1-10 carbon atoms, a cycloaliphatic radical, a thiocycloaliphatic radical or --O--Si(CH.sub.3).sub.2 --R.sub.8 wherein R.sub.8 represents lower alkyl; and R.sub.4 and R.sub.5 represent hydrogen, lower alkyl, hydroxy or lower acyloxy. This compound is useful in the topical and systemic treatment of dermatologic diseases and in the treatment of the degeneration of conjuctive tissues. The compound also possesses anti-tumor activity.
一种苯并
萘化合物具有以下结构式:##STR1## 其中R.sub.1代表##STR2##或(ii) --CH.sub.2 OH; R.sub.6代表##STR3##或OR.sub.7,其中R.sub.7代表氢,具有1-20个碳原子的烷基,单羟基烷基或多羟基烷基,r'或r"代表氢,低烷基,单或多羟基烷基,芳基或
氨基酸或糖的残基,或一起形成杂环; R.sub.2代表氢,具有1-15个碳原子的烷基,具有1-4个碳原子的烷氧基或环状脂肪基; R.sub.3代表氢,羟基,具有1-4个碳原子的烷基,具有1-10个碳原子的烷氧基,环状脂肪基,
硫代环状脂肪基或--O--Si(CH.sub.3).sub.2--R.sub.8,其中R.sub.8代表低烷基; R.sub.4和R.sub.5代表氢,低烷基,羟基或低酰氧基。该化合物在治疗皮肤病的局部和全身治疗以及结缔组织退行性疾病的治疗中有用,并且具有抗肿瘤活性。