Synthesis of spiro[isobenzofuran-1(3H),4'-piperidines] as potential central nervous system agents. 6. Synthesis, carbon-13 NMR, and biological evaluation of cis- and trans-4-amino-3'-arylspiro[cyclohexane-1,1'(3'H)-isobenzofuran] derivatives
作者:Lawrence L. Martin、Manfred Worm、Marc N. Agnew、Hansjoerg Kruse、Jeffrey C. Wilker、Harry M. Geyer
DOI:10.1021/jm00137a025
日期:1981.5
and 4-(methylamino)-3'-arylspiro[cyclohexane-1,1'(3'H)-isobenzofuran] derivatives were prepared as analogues of previously reported 3-arylspiro[isobenzofuran-1(3H),4'-piperidines]. Metalation of benzanilide with n-butyllithium, addition of 4-(dimethylamino)cyclohexanone, and acidification afforded a mixture of cis- and trans-4-(dimethylamino)spiro[cyclohexane-1,1'(3'H)-isobenzofuran]-3'-ones (1a,b)
制备4-(二甲基氨基)-和4-(甲基氨基)-3'-芳基螺[环己烷-1,1'(3'H)-异苯并呋喃]衍生物作为先前报道的3-芳基螺[异苯并呋喃-1(3H)的类似物,4'-哌啶]。用正丁基锂将苯甲酰苯胺金属化,加入4-(二甲基氨基)环己酮,酸化后得到顺式和反式-4-(二甲基氨基)螺[环己烷-1,1'(3'H)-异苯并呋喃]-的混合物3'-ones(1a,b),通过分步结晶分离。将芳基锂或芳基格氏试剂添加到1a,b中,并将甲酸还原,得到顺式和反式4-(二甲基氨基)-3'-芳基螺[环己烷-1,1'(3'H)-异苯并呋喃] 3a-f,将其转化为仲胺类似物5a-e。暂定立体化学分配基于化学参数,并由13C NMR化学位移数据支持。丁苯那嗪诱导的上睑明显受到抑制是大多数抗抑郁药的一种特性,并且对于这些化合物中的几种,观察到了显着的抗丁苯那嗪活性。最佳的抗丁苯那嗪活性与顺式3'-苯基系列有关,顺式仲胺5a