Using intramolecular cyclization of the in situ prepared chlorides of acids XVI-XX, catalysed with zinc chloride, corresponding 4-aryl-2,3-dihalogeno-1-naphthols III-VII were prepared. Methylation or acetylation of compounds I, IV-VI gave O-methyl-derivatives VIII-XI or O-acetyl derivatives IXII-XV, respectively. Compounds III-XV displayed a weak antineoplastic effect in animals with some transplantable tumours.
通过使用在场制备的酸
氯化物XVI-XX的分子内环化,催化剂为
氯化锌,制备了相应的4-芳基-2,3-二卤代-1-
萘酚III-VII。对化合物I、IV-VI进行甲基化或乙酰化得到O-甲基衍
生物VIII-XI或O-乙酰衍
生物IXII-XV。化合物III-XV在动物体内显示出对一些可移植肿瘤具有微弱的抗肿瘤效果。