具有药理活性的苯并[ b ]噻吩衍生物。第六部分 N -2-氯乙基-N-乙基-3-氨基甲基苯并[ b ]噻吩盐酸盐的4-和6-卤代衍生物
摘要:
(环化米热多磷酸-chlorophenylthio)丙酮,得到的混合物中4-氯和6-氯-3-甲基苯并[ b ]噻吩(7:4),和(米-bromophenylthio)丙酮4:1的混合物-溴和6-溴-3-甲基苯并[ b ]噻吩(1:3)。这些产物通过4-和6-氯-3-甲基苯并[ b ]噻吩和4-溴-3-甲基苯并[ b ]噻吩的明确合成来鉴定。N取代溴代3-甲基苯并[ b ]噻吩在沸腾的四氯化碳中的-溴代琥珀酰亚胺得到相应的溴甲基化合物,该化合物容易与2-乙基氨基乙醇在沸腾的苯中反应。所得的氨基醇与亚硫酰氯在干沸腾的氯仿中反应,得到所需的(2-氯乙基)胺。
The present invention relates to compounds of formula I
wherein
R
1
, R
2
, R
3
are as described in the specification and pharmaceutically acceptable acid addition salts and tautomers thereof.
Compounds of formula I have good activity on the 5-HT
5A
receptor. Therefore, the invention provides a method for treating diseases related to this receptor, for example, anxiety, depression, sleep disorders and schizophrenia.
The optimisation of affinity and selectivity in a novel series of dual 5-HT5A/5-HT7 receptor ligands is described. Brain penetrant 2-aminodihydroquinazolines with low nanomolar affinities were identified. (C) 2007 Elsevier Ltd. All rights reserved.