Piperazine 2HCl

Piperazine (2HCl) is gamma-aminobutyric acid (GABA) agonists and its major effects appear to be on the central nervous system. Piperazine was the anthelmintic with the greatest number of reports of toxicoses and suspected toxicoses in cats. Piperazine neurotoxicity in cats and dogs usually was manifested by muscle tremors, ataxia, and or behavioral disturbances within 24 hours after estimated daily dose(s) between 20 and 110 mg kg[1]. For di-substituted derivatives, ciprofloxacin was selected and hybrids were synthesized via substitution at piperazinyl-N4. The reaction of piperazinyl-NH of ciprofloxacin with selected drugs resulted in pronounced growth inhibition of standard as well as resistant bacterial strains[2]. The parent piperazine 6 was found to exhibit a reasonable activity toward the HeLa and MDA MB 231 tumor cell lines (IC50= 9.2 and 8.4 μΜ, respectively)[3]. Piperazine adipate (10 mM) causes mortality of A. galli and H. gallinae after a maximum of 30 min exposure, inhibits malate oxidation by 78%, and inhibits aldolase activity in both parasites. Piperazine adipate (10 mM) also inhibits cholinesterase activity by 96% in Ascaridia galli (A. galli) and 93% in Heterakis gallinae (H. gallinae). Piperazine adipate inhibits oxaloacetate reduction by 26% and 55% in A. galli and H. gallinae, resepctively[4].

Lenalidomide 5'-piperazine-4-methylpiperidine hydrochloride为一种功能化的小分子配体，主要应用于PROTAC开发中。该化合物集成了E3连接酶配体及末端哌啶，便于进行化学反应并生产出具有刚性连接体的蛋白质降解剂。

1-(3-chloropyridin-2-yl)piperazine dihydrochloride 是一种哌嗪类化合物，常被用作有机合成中的试剂，配位化学中的配体，以及制药中的药物。它是DPP4的抑制剂，DPP4的抑制已被证明在治疗某些疾病（如2型糖尿病和肥胖症）方面具有有益效果。

1-{1H-pyrrolo[2,3-d]pyrimidin-4-yl}piperazine dihydrochloride （1-PPZ-DHC）是一种用作分子结构单元的化合物。它是天然产物哌嗪的类似物，具有广泛的生物活性，包括抗炎、抗肿瘤和抗菌活性，同时还被研究用于治疗神经系统疾病，如阿尔茨海默氏症和帕金森氏症。

Meclizine dihydrochloride (NSC28728) 是一种组胺 H1 拮抗剂，用于治疗妊娠期间的晕动病、眩晕和恶心以及放射病。它是小鼠组成型雄甾烷受体激动剂，是人 CAR 的反向激动剂。它可透过血脑屏障，可用于多聚谷氨酰胺毒性障碍方面的研究。