Substituted alkadienes of the formula: ##STR1## in which R.sub.1 is hydroxy or acetoxy, R.sub.2 is hydrogen, carboxy, alkoxycarbonyl, phenyl or benzoyl, and R.sub.3 is alkylthio or alkoxy and R.sub.4 is naphthoyl or optionally substituted benzoyl, or R.sub.3 is alkoxycarbonyl, cycloalkyloxycarbonyl or cyano and R.sub.4 is alkyl, naphthyl, optionally substituted phenyl, alkylthio, naphthylmethanethio, optionally substituted benzylthio, optionally substituted phenylthio, naphthylthio, phenethylthio or allylthio, or R.sub.3 and R.sub.4 form, with the carbon atom to which they are attached, a ring-system of formula: ##STR2## in which R.sub.5 is hydrogen or alkoxy and X is methylene or S inhibit 5-lipoxygenase and are useful, for example, as anti-inflammatories.
公式为:##STR1## 其中 R.sub.1 是羟基或乙酰氧基,R.sub.2 是氢、羧基、烷氧羰基、苯基或苯甲酰基,R.sub.3 是烷基
硫醚或烷氧基,R.sub.4 是
萘甲酰基或可选地取代的苯甲酰基,或者 R.sub.3 是烷氧羰基、环烷氧羰基或
氰基,R.sub.4 是烷基、
萘基、可选地取代的苯基、烷基
硫醚、
萘基
甲硫醇、可选地取代的
苄硫醇、可选地取代的苯基
硫醇、
萘硫醇、苯乙基
硫醇或烯丙基
硫醇,或者 R.sub.3 和 R.sub.4 与它们连接的碳原子形成下列环系统的环:##STR2## 其中 R.sub.5 是氢或烷氧基,X 是亚甲基或
硫,抑制 5-脂氧酶,并且例如作为抗炎药物是有用的。