Novel 1,5-benzothiazepine derivatives having the formula; ##STR1## (wherein R.sub.1, R.sub.2 and R.sub.3 each denotes hydrogen, a halogen, a lower alkyl group, a lower alkoxy group or a hydroxy group; R.sub.4 denotes a lower alkyl group, an allyl group, a lower alkoxyalkyl group, a lower alkyl group substituted with a hydroxy group or a halogen, a lower alkylaminoalkyl group or a morpholino lower alkyl group; X denotes a halogen or hydrogen) are produced from corresponding 1,4-benzothiazine by a ring expansion reaction with trimethylhalosilane, hydrogen peroxide and water. The derivatives have analgesic, antipyretic and antiarrythmic activities.
具有以下结构式的1,5-
苯并噻吩衍
生物的小说;##STR1##(其中R.sub.1,R.sub.2和R.sub.3分别表示氢,卤素,较低的烷基,较低的烷氧基或羟基;R.sub.4表示较低的烷基,
丙烯基,较低的烷氧烷基,用羟基或卤素取代的较低的烷基,较低的烷
氨基烷基或
吗啡环较低的烷基;X表示卤素或氢),通过与三甲基卤
硅烷,
过氧化氢和
水进行环扩张反应从相应的1,4-苯并
噻嗪产生。这些衍
生物具有镇痛,退热和抗心律失常活性。