[EN] PROCESS FOR PRODUCING 11-[4-[2-(2-HYDROXYETHOXY)ETHYL]-1-PIPERAZINYL]DIBENZO[b,f][1,4]THIAZEPINE AND A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF<br/>[FR] PROCEDE DE PRODUCTION DE 11-[4-[2-(2-HYDROXYETHOXY)ETHYL]-1-PIPERAZINYL]DIBENZO[B,F][1,4]THIAZEPINE ET D'UN SEL ACCEPTABLE SUR LE PLAN PHARMACEUTIQUE ASSOCIE
申请人:JUBILANT ORGANOSYS LTD
公开号:WO2006027789A1
公开(公告)日:2006-03-16
A process for producing 11-[4-[2-(2-hydroxyethoxy)ethyl]-l-piperazinyl]dibenzo [b,f][1,4]thiazepine [I] and a pharmaceutically suitable acid addition salt is disclosed. Accordingly, thiosalicylic acid [XVI] is reacted with o-halonitrobenzene [XVII] using a phase transfer catalyst to obtain 2-nitro-2'-carboxydiphenylsulphide [XI]. It is hydrogenated in the presence of a noble metal catalyst to obtain 2-amino-2' carboxydiphenyl sulphide [X]. The 2-amino-2'-carboxydiphenylsulphide [X] is reacted with halide or oxyhalide of the phosphorous to obtain in situ iminohalide [VI], which further reacts as such with 1-hydroxyethoxyethylpiperazine or condenses with piperazine to obtain 11-piperazinyldi.benzo[b,f][1,4]thiazepine [XIX] which further reacts with 2- chloroethoxyethanol or reacts with 1-(2-hydroxyethyl)piperazine to give 11-[4-(2-hydroxyethyl)piperazine-1-yl]dibenzo[b,f][ 1,4]thiazepine [XXXI] which further converts to an intermediate 11-[4-(2-substitutedethyl)piperazin-1- yl)dibenzo[b,f][1,4]thiazepine wherein the substituent at the 2-position is selected from mesyloxy or tosyloxy or halo group [XXXII] followed by reaction with ethylene glycol to give quetiapine [1].
揭示了一种生产11-[4-[2-(2-羟基乙氧基)乙基]-1-哌嗪基]二苯并[b,f][1,4]噻吩[I]及其药用合适的酸盐的方法。因此,巯基水杨酸[XVI]与o-卤代硝基苯[XVII]在相转移催化剂的作用下反应,得到2-硝基-2'-羧基二苯硫醚[XI]。在贵金属催化剂的存在下加氢得到2-氨基-2'-羧基二苯硫醚[X]。2-氨基-2'-羧基二苯硫醚[X]与磷的卤代物或氧卤代物反应,得到原位亚胺卤化物[VI],后者直接与1-羟乙氧乙基哌嗪反应或与哌嗪缩合,得到11-哌嗪二.苯并[b,f][1,4]噻吩[XIX],它进一步与2-氯乙氧乙醇反应或与1-(2-羟乙基)哌嗪反应,得到11-[4-(2-羟乙基)哌嗪-1-基]二苯并[b,f][1,4]噻吩[XXXI],它进一步转化为中间体11-[4-(2-取代乙基哌嗪-1-基)二苯并[b,f][1,4]噻吩,其中2-位置的取代基选择自mesyloxy或tosyloxy或卤素基[XXXII],然后与乙二醇反应得到喹硫平[1]。