Novel 8-substituted pyrrolizidines having the formula:
(wherein R is a C1-C10 hydrocarbon group, a lower aliphatic carboxyl group esterified with a lower alcohol, a lower aliphatic carboxyl group amidated with a C5-C13 primary or secondary amine, a C2-C14 lower alkyl group which has a hydroxyl group and has optionally aryl substituents, a lower alkyl group which has a hydroxyl group esterified with a C2-C16 carboxylic acid or etherified with a C2-C13 alkohol, a lower alkyl group which has a primary amino group or a C1-C14 mono- or di-substituted amino group, or a lower alkyl bearing a C2-C10 acyl group) and quaternary ammonium salts thereof. These compounds have pharmacological activities such as spasmolytic activity on the smooth muscle of guinea pig ileum.
新颖的8-取代的
吡咯烷类化合物,其式如下
(其中 R 是 C1-C10 烃基、与低级醇酯化的低级脂肪族羧基、与 C5-C13
伯胺或仲胺酰胺化的低级脂肪族羧基、具有羟基并可选择具有芳基取代基的 C2-C14 低级烷基、具有羟基并与 C2-C16
羧酸酯化或与 C2-C13 醇醚化的低级烷基,具有伯
氨基或 C1-C14 单或二取代
氨基的低级烷基,或具有 C2-C10
丙烯酸基的低级烷基)及其季
铵盐。这些化合物具有药理活性,如对豚鼠回肠平滑肌的解痉活性。