Novel morpholino compounds having the general formula ##STR1## wherein R.sub.1 is a straight or branched alkyl group containing 8 to 16 carbon atoms at the 2- or 3-position of the morpholino ring, and R.sub.2 is a straight or branched alkyl group containing 2 to 10 carbon atoms, substituted with a hydroxy group except in the alpha-position, the sum of the carbon atoms in the groups R.sub.1 and R.sub.2 being at least 10 and preferably 10 to 20; and pharmaceutically acceptable salts thereof. Compositions for the treatment of the oral cavity and especially the tooth surfaces containing the novel compound or a salt thereof, preferably from 0.1 to 5% by weight thereof. Use of the compounds to inhibit the formation of dental plaque or remove plaque already formed by application of the compound in an aqueous solution or a composition to the surfaces of the oral cavity, especially the surfaces of the teeth. Processes for the preparation of the compounds.
具有一般式##STR1##的新型
吗啡啶化合物,其中R.sub.1是直链或分支烷基,包含8至16个碳原子,在
吗啡啶环的2-或3-位置,R.sub.2是直链或分支烷基,含有2至10个碳原子,除α-位置外,取代有羟基,R.sub.1和R.sub.2中的碳原子总和至少为10,最好为10至20;以及其药学上可接受的盐。含有新化合物或其盐的治疗口腔,特别是牙齿表面的组合物,其重量百分比为0.1至5%。使用这些化合物通过在口腔表面,特别是牙齿表面上施用
水溶液或组合物来抑制牙菌斑的形成或去除已经形成的牙菌斑。制备这些化合物的过程。