Certain new propenamide and 2-butenamide compounds, having a (4-carboxy-2-oxo-pyrrolidino)phenyl substituent at the 3-position, and certain esters thereof, and their use for antagonizing the spasmogenic activity of slow-reacting substance of anaphylaxis (SRS-A) in a human subject. In particular, the compounds of the invention are useful for preventing and treating certain obstructive airways diseases, notably allergic bronchial asthma, allergic rhinitis and certain skin disorders, in human subjects.
某些新的
丙烯酰胺和
2-丁烯酰胺化合物,在3位具有(4-羧基-2-氧代
吡咯啉基)苯基取代基,以及它们的某些酯,以及它们在人体中用于拮抗过敏性反应缓慢反应物质(SRS-A)的痉挛原活性。特别是,本发明的化合物对于预防和治疗某些阻塞性气道疾病,特别是过敏性支气管哮喘、过敏性鼻炎和某些皮肤疾病,在人体中具有用处。