Amidine derivatives of opioids of the formula YN—X—(NH)n-C(═NR)—R′ in which YN is a morphine-like opioid radical; X is a direct bond, a substituted or unsubstituted, branched, straight-chained or cyclic alkylene having from 1 to 6 carbon atoms, optionally containing one or two heteroatoms in the alkyl chain, or an optionally substituted, branched or straight-chained alkenylene having from 4 to 10 carbon atoms; R and R′ are independently hydrogen, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkyne, aryl, substituted aryl, heterocycle, substituted hetercycle or cyano; and n is 0 when X is said direct bond, or n is 1 when X is said alkylene or alkenylene. The compounds are effective in treating pain, and have effect in the peripheral nervous system, with comparably less or no activity in the central nervous system.
公式为YN—X—(NH)n-C(═NR)—R′的阿米啡衍
生物,其中YN为类似
吗啡的阿米啡基团;X为直接键,具有1到6个碳原子的取代或未取代的分支、直链或环烷基,可包含1或2个杂原子在烷基链中,或具有4到10个碳原子的可选取代、分支或直链烯基;R和R′独立地为氢、烷基、取代烷基、烯烃、取代烯烃、
炔烃、取代
炔烃、芳基、取代芳基、杂环、取代杂环或
氰基;当X为直接键时,n为0,当X为烷基或烯基时,n为1。这些化合物对于治疗疼痛有效,并在周围神经系统中具有作用,与中枢神经系统相比具有较少或没有活性。