Substitution reactions of 2,11-dichloro-7-fluoro-(seriesa) and 2,11-dichloro-3,7-difluoro-10,11-dihydrodibenzo[b,f]thiepin (seriesb) with 1-(4-fluorobenzyl)piperazine, 1-[2-(4-fluorophenyl)-ethyl]piperazine, 1-[2-(4-fluorophenoxy)ethyl]piperazine, 1-[2-(4-fluorophenylthio)ethyl]piperazine, 1-[3-(4-fluorobenzoyl)propyl]piperazine and 1-[4,4-bis-(4-fluorophenyl)butyl]piperazine gave the title compounds Ia,b-VIa,b. Compounds of the series a are little toxic, have low cataleptic activity and display a relatively high central depressant activity, being fully developed only after 4 h and persisting until the 3rd-7th day after the oral administration. Compounds of series b are less active and the protracted depressant effects are shown only by substances IIIb and Vb.
2,11-二氯-7-氟-(系列a)和2,11-二氯-3,7-二氟-10,11-二氢二苯并[b,f]噻吩(系列b)与1-(4-氟苯基)哌嗪、1-[2-(4-氟苯基)乙基]哌嗪、1-[2-(4-氟苯氧基)乙基]哌嗪、1-[2-(4-氟苯基硫基)乙基]哌嗪、1-[3-(4-氟苯甲酰基)丙基]哌嗪和1-[4,4-双(4-氟苯基)丁基]哌嗪发生取代反应,得到标题化合物Ia,b-VIa,b。系列a化合物毒性较小,具有低的瘫痪活性,并表现出相对较高的中枢抑制活性,仅在口服后4小时后完全发展,并持续到第3-7天。系列b化合物活性较低,仅IIIb和Vb物质显示出持久的抑制效果。