Thioformamide derivatives of the formula (I) ##STR1## wherein R represents an alkyl group; A represents either: (1) a phenyl group which is optionally substituted; or (2) heteroaromatic group (e.g. pyrid-3-yl, quinolin-3-yl); Y represents: an ethylene or methylene group or a direct bond; and B represents either: a) a phenyl, pyridyl, furyl or thienyl group, each of which may be optionally substituted, or b) a straight- or branched-chain alkyl, alkenyl, or cycloalkyl group, each of which may be optionally substituted. These compounds may be formulated into pharmaceutical preparations and have utility in the treatment of disorders associated with smooth muscle contraction.
                            Thioformamide衍
生物的
化学式(I) ##STR1## 其中R代表烷基; A代表:(1) 可选择取代的苯基; 或(2) 杂芳基(例如
吡啶-3-基,
喹啉-3-基); Y代表:
乙烯基或亚甲基或直接键; B代表:a) 可选择取代的苯基,
吡啶基,
呋喃基或
噻吩基,或b) 直链或支链烷基,烯基或环烷基,每种均可选择取代。这些化合物可以制成药物制剂,并在治疗与平滑肌收缩有关的疾病中发挥作用。