A proces for the synthesis of 1-(4-Arylpiperazine-1-y1)-3-(2-oxypyrrolidin/piperidin-1-y1) propanes as therapeutic agents for hypertension, ischemia, cardiovascular and other adrenergic receptors related disorders
申请人:Council of Scientific and
Industrial Research
公开号:EP0913397A1
公开(公告)日:1999-05-06
A process of preparing novel compounds of formula 1
Wherein Ar represents a phenyl ring substituted by the groups like halo, alkoxy, alkyl or heteroaryl, n=1 or n=2; said compounds are used as potential therapeutic agents for hypertension, ischemic, cardiovascular and other adrenergic receptors related disorders, said process comprising condensing 2-pyrrolidone of formula 2 (n=1) or 2-piperidone of formula 2 (n=2) with 1-[4-substituted arylpiperazin-1-yl]-3-chloropropanes of formula 5 where Ar represents a phenyl ring substituted by the groups like halo, alkoxy, alkyl or heteroaryl in the presence of a base and organic solvent at a temperature ranging from 120-150°C for a period varying between 90 min. to 14 hrs. to produce the corresponding 1-[4-substituted arylpiperazin-1-yl]-3-[2-oxopyrrolidin/piperidin-1-yl]propanes of formula 1.
一种制备式 1 新型化合物的工艺
其中 Ar 代表被卤代、烷氧基、烷基或杂芳基等基团取代的苯基环,n=1 或 n=2;所述化合物可用作高血压、缺血、心血管和其他肾上腺素能受体相关疾病的潜在治疗剂,所述工艺包括将式 2 的 2-吡咯烷酮(n=1)或式 2 的 2-哌啶酮(n=2)与式 5 的 1-[4-取代芳基哌嗪-1-基]-3-氯丙烷缩合,其中 Ar 代表被卤代、烷氧基、烷基或杂芳基等基团取代的苯基环、在碱和有机溶剂存在下,在 120-150°C 的温度范围内,经过 90 分钟至 14 小时,制得式 5 所示的[4-取代芳基哌嗪-1-基]-3-氯丙烷。至 14 小时,生成相应的式 1 的 1-[4-取代芳基哌嗪-1-基]-3-[2-氧代吡咯烷/哌啶-1-基]丙烷。