Novel 1,5-benzoxathiepin derivatives of the formula:
[wherein R1 and R2 are independently hydrogen, halogen, hydroxy, lower alkyl or lower alkoxy; R3 and R4 are independently hydrogen, optionally substituted lower alkyl or optionally substituted cycloalkyl or optionally substituted aralkyl, or both jointly form an optionally substituted ring together with the adjacent nitrogen atom; X is hydrogen, optionally substituted lower alkyl, optionally substituted aryl or a carboxyl group which may be esterified or amidated; Y is
or
(wherein R5 is hydrogen, acyl or optionally substituted carbamoyl); m is an integer of 0 to 2; n is an integer of 1 to 6] and salts thereof exhibit serotonin S2 receptor blocking activity, calcium antagonism, actions to relieve cerebral vasospasm and to improve renal circulation and diuretic and antithrombotic activities, and are of value as a prophylactic and therapeutic agent for ischemic cardiopathies, thrombosis, hypertension and cerebral circulatory disorders.
式中的新型 1,5-苯并噁噻啶衍
生物:
[其中 R1 和 R2 独立地为氢、卤素、羟基、低级烷基或低级烷氧基;R3 和 R4 独立地为氢、任选取代的低级烷基或任选取代的环烷基或任选取代的芳烷基,或两者与相邻的氮原子共同形成任选取代的环;X 为氢、任选取代的低级烷基、任选取代的芳基或可被酯化或酰胺化的羧基;Y 为
或
(其中 R5 是氢、酰基或任选取代的
氨基甲酰基);m 是 0 至 2 的整数;n 是 1 至 6 的整数]及其盐具有 5-羟
色胺 S2 受体阻断活性、
钙拮抗作用、缓解脑血管痉挛和改善肾循环的作用以及利尿和抗血栓活性,可作为缺血性心脏病、血栓形成、高血压和脑循环障碍的预防和治疗药物。