Pharmacologically active 6-lower alkyl-7,8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepines, method of preparing them and intermediates
申请人:SMITHKLINE BECKMAN CORPORATION
公开号:EP0002327A1
公开(公告)日:1979-06-13
6-Lower alkyl-7,8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-IH-3-benzazepines of formula:
in which:
R is a lower alkyl of 1-6 carbons;
R, is hydrogen, benzyl, phenethyl, lower alkanoyl of 1-5 carbons, lower alkyl of 1-5 carbons, lower alkyenyl of 3-5 carbons, furyl methyl, thienylmethyl or phenacyl;
R2 and R3 are each hydrogen, lower alkyl of 1-5 carbons, lower alkanoyl of 2-5 carbons, benzyl or, when taken together, methylene; and
R4 is hydrogen or one or two substituents from the group comprising trifluoromethyl, halo, methyl, methoxy, acetoxy, hydroxy or methylthio; or pharmaceutically acceptable, acid addition salts thereof
show dopaminergic activity.
Intermediates and chemical methods for preparing them are described. An important species is 6-methyl-7,8-dihydroxy-l(p-hydroxyphenyl) -2,3,4,5- tetrahydro -1N-3- benzazepine, as the base or one of its salts, which has antihypertensive activity.
式中的 6-低级烷基-7,8-二羟基-1-苯基-2,3,4,5-四氢-IH-3-苯并氮杂卓:
其中
R是1-6个碳原子的低级烷基;
R,是氢、苄基、苯乙基、1-5 个碳原子的低级烷酰基、1-5 个碳原子的低级烷基、3-5 个碳原子的低级烯基、呋喃甲基、噻吩甲基或苯乙基;
R2 和 R3 分别是氢、1-5 个碳原子的低级烷基、2-5 个碳原子的低级烷酰基、苄基或合起来是亚甲基;以及
R4 是氢或来自三氟甲基、卤代、甲基、甲氧基、乙酰氧基、羟基或甲硫基等组的一个或两个取代基;或其药学上可接受的酸加成盐
显示多巴胺能活性。
本文介绍了中间体和制备它们的化学方法。其中一种重要的中间体是 6-甲基-7,8-二羟基-l(对羟基苯基)-2,3,4,5-四氢-1N-3-苯并氮杂卓,它的碱或盐具有抗高血压活性。