会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明申请
    • PROCESS FOR PRODUCING 11-[4-[2-(2-HYDROXYETHOXY)ETHYL]-1-PIPERAZINYL]DIBENZO[b,f][1,4]THIAZEPINE AND A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF
    • 制备11- [4- [2-(2-羟基乙氧基)乙基] -1-哌嗪基]二苯并[b,f] [1,4]噻吩及其药物可接受的盐的方法
    • WO2006027789A1
    • 2006-03-16
    • PCT/IN2004/000281
    • 2004-09-08
    • JUBILANT ORGANOSYS LIMITEDPATHAK, ShailendraSHARMA, JitendraKAUSHIK, GeeteshTHAPER, Rajesh, KumarDUBEY, Sushil, Kumar
    • PATHAK, ShailendraSHARMA, JitendraKAUSHIK, GeeteshTHAPER, Rajesh, KumarDUBEY, Sushil, Kumar
    • C07D281/02
    • C07D281/16
    • 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].
    • 公开了制备11- [4- [2-(2-羟基乙氧基)乙基] -1-哌嗪基]二苯并[b,f] [1,4]硫氮杂] [I]和药学上合适的酸加成盐的方法。 因此,使用相转移催化剂将硫代水杨酸[XVI]与邻硝基苯[XVII]反应,得到2-硝基-2'-羧基二苯基硫化物[XI]。 在贵金属催化剂存在下氢化得到2-氨基-2'-羧基二苯基硫醚[X]。 将2-氨基-2'-羧基二苯基硫化物[X]与磷的卤化物或卤氧化物反应,得到原位亚氨基卤[VI],其进一步与1-羟基乙氧基乙基哌嗪反应或与哌嗪缩合,得到11-哌嗪基二苯并 [b,f] [1,4]硫氮杂[XIX],其进一步与2-氯乙氧基乙醇反应或与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]硫氮杂[XXXI],其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] 2位上的取代基选自甲磺酰氧基或甲苯磺酰氧基或卤代基[ⅩⅩⅫ],随后与乙二醇反应得到喹硫平[1]。