1-[2-(2-Fluorophenoxy)phenyl]-4-dimethylaminobutanol (XI) was synthesized from 2-(2-fluorophenoxy)benzoic acid (VIII) in three steps and cyclized with sodium hydride in dimethylformamide to the title compound V. Reaction of 5-chloro-2-(methylthio)thiophenol (XIV) with sodium and liquid ammonia afforded benzene-1,2-dithiol (XIII) which was treated with 2-bromobenzyl bromide and gave 11H-dibenzo[b,e]-1,4-dithiepin (II). An alternative synthesis of compound II consisted in the cyclization of 2-(2-bromophenylthiomethyl)thiophenol (XVIII) and was accompanied by the simultaneous formation of 6H, 12H-dibenzo[b,f]-1,5-dithiocin (XIX) and thianthrene (XX). Reaction of compound II with n-butyllithium and the following treatment with dimethylaminoalkyl chlorides or with carbon dioxide resulted on the one hand in two further title compounds VI and VII, and in the carboxylic acid XXI on the other. 2-Chloro-11H-dibenzo[b,e]-1,4-dithiepin (XXII) was obtained by a further synthesis alternative using in the first step the cyclization of 2-(4-chloro-2-chloromethylphenylthio)thiophenol (XXV). Compound VI and VII showed a high degree of activity in the test of antagonization of reserpine hypothermia in mice.
1-[2-(2-氟苯氧基)苯基]-4-二甲氨基丁醇(XI)是从2-(2-氟苯氧基)苯甲酸(VIII)经过三个步骤合成,并在二甲基甲酰胺中与氢化钠环化得到了标题化合物V。5-氯-2-(甲硫基)噻吩酚(XIV)与钠和液氨反应生成苯-1,2-二硫醚(XIII),然后与2-溴苄溴化物反应生成11H-二苯并[b,e]-1,4-二硫杂环戊烷(II)。化合物II的另一种合成方法是通过2-(2-溴苯硫甲基)噻吩酚(XVIII)环化,同时伴随生成6H, 12H-二苯并[b,f]-1,5-二硫杂环辛烷(XIX)和硫蒽(XX)。化合物II与正丁基锂反应,随后处理与二甲基氨基烷氯化物或二氧化碳,一方面生成另外两种标题化合物VI和VII,另一方面生成羧酸XXI。通过另一种合成方法,首先使用2-(4-氯-2-氯甲基苯基硫)噻吩酚(XXV)环化,得到2-氯-11H-二苯并[b,e]-1,4-二硫杂环辛(XXII)。化合物VI和VII在小鼠对去甲肾上腺素低温症的拮抗试验中表现出很高的活性。