Category: piperazines

Dow, Robert L.; Paight, Ernest S.; Schneider, Steven R.; Hadcock, John R.; Hargrove, Diane M.; Martin, Kelly A.; Maurer, Tristan S.; Nardone, Nancy A.; Tess, David A.; DaSilva-Jardine, Paul published an article in Bioorganic & Medicinal Chemistry Letters. The title of the article was 《Potent and selective, sulfamide-based human β3-adrenergic receptor agonists》.Name: 4-Methyl-1-piperazinesulfonyl Chloride The author mentioned the following in the article:

A series of sulfamide-based analogs, e.g., I, related to L-796568 were prepared and evaluated for their biol. activity at the human β3-adrenergic receptor (AR). This modification allows for a significant reduction in mol. weight, while maintaining single-digit nanomolar potencies at the β3-AR and high selectivities vs. the β1- or β2-AR.4-Methyl-1-piperazinesulfonyl Chloride(cas: 1688-95-5Name: 4-Methyl-1-piperazinesulfonyl Chloride) was used in this study.

4-Methyl-1-piperazinesulfonyl Chloride(cas: 1688-95-5) is a member of sulfamide. Sulfamide was used in the synthesis of: Schiff bases of the type ArCH=NSO2NH2; 1H,3H-2,1,3-benzothiadiazin-4-one-2,2-dioxide (BTDD); sulfamide analogs of oleoylethanolamide analogs in a study of PPARα activation.Name: 4-Methyl-1-piperazinesulfonyl Chloride

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Safety of 1-MethylpiperazineIn 2021 ,《Discovery and optimization of novel pyrazole-benzimidazole CPL304110 as a potent and selective inhibitor of fibroblast growth factor receptors FGFR (1-3)》 appeared in European Journal of Medicinal Chemistry. The author of the article were Yamani, Abdellah; Zdzalik-Bielecka, Daria; Lipner, Joanna; Stanczak, Aleksandra; Piorkowska, Natalia; Stanczak, Paulina Seweryna; Olejkowska, Patrycja; Hucz-Kalitowska, Joanna; Magdycz, Marta; Dzwonek, Karolina; Dubiel, Krzysztof; Lamparska-Przybysz, Monika; Popiel, Delfina; Pieczykolan, Jerzy; Wieczorek, Maciej. The article conveys some information:

The scaffolds hybridization approach, scaffold-hopping concept, has been employed to synthesize a series of novel pyrazole-benzimidazoles I [R1 = H, Cl; R2 = morpholin-4-yl, 4-methylpiperazin-1-ylcarbonyl, tetrahydropyran-4-ylcarbamoyl, etc.; R3 = H, F]. Compound I [R1 = R3 = H; R2 = 4-methylpiperazin-1-yl] (CPL304110) was identified as a selective and potent pan-FGFR inhibitor for FGFR1, FGFR2, FGFR3 with IC50 of 0.75 nM, 0.50 nM, 3.05 nM resp., and IC50 of 87.90 nM for FGFR4. Due to its favorable pharmacokinetic profile, low toxicity and potent anti-tumor activity in-vivo, this compound I is currently under evaluation in phase I clin. trial for the treatment of bladder, gastric and squamous cell lung cancers (01FGFR2018; NCT04149691). In the part of experimental materials, we found many familiar compounds, such as 1-Methylpiperazine(cas: 109-01-3Safety of 1-Methylpiperazine)

1-Methylpiperazine(cas: 109-01-3) can be used as mimic template in the preparation of molecularly imprinted microspheres (MIMs). It was also used to prepare the difunctional strong anion-exchange stationary phase from a 1,4-diazacyclohexane derivative..Safety of 1-Methylpiperazine

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

《Synthesis, biological evaluation and molecular docking studies of some new 2-(2-(substituted piperazin-1-yl)-phenyl)-1H-benzo[d]imidazoles as potential antibacterial, anticancer and antifungal agents》 was written by Bhardwaj, Harsh; Sharma, C. S.. Name: 1-Methylpiperazine And the article was included in Indian Journal of Heterocyclic Chemistry in 2020. The article conveys some information:

Some new 2-(2-(substituted piperazin-1-yl)-phenyl)-1H-benzo[d]imidazoles I [R = H, 2-Me, 4-Et, etc.] were designed, synthesized and evaluated by the docking studies using glide tool for their antimicrobial and anticancer activities. The structures of these compounds I were characterized by IR, proton NMR, mass spectral data, and elemental anal. Each analog was tested in-vitro for various types of pharmacol. activities, including antibacterial, antifungal and anticancer activity. The compound I [R = 3-Me] was found to be most active against Escherichia coli and Pseudomonas aeruginosa and compound I [R = 2-Et] against Bacillus subtilis and Staphylococcus aureus. The derivative I [R = 4-Et] showed good activity against Candida albicans and Aspergillus niger. Among all the tested compounds, I [R = H, 2-Me] were found with significant anticancer activity in comparison to Adriamycin standard drug. The obtained results revealed that most of the synthesized compounds I exhibited significant antifungal, antibacterial and anticancer activity. It was deduced that these synthesized compounds I can be regarded as a promising starting point for developing a single mol. with multiple targets.1-Methylpiperazine(cas: 109-01-3Name: 1-Methylpiperazine) was used in this study.

1-Methylpiperazine(cas: 109-01-3) can be used as mimic template in the preparation of molecularly imprinted microspheres (MIMs). It was also used to prepare the difunctional strong anion-exchange stationary phase from a 1,4-diazacyclohexane derivative..Name: 1-Methylpiperazine

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Zajdel, Pawel; Kos, Tomasz; Marciniec, Krzysztof; Satala, Grzegorz; Canale, Vittorio; Kaminski, Krzysztof; Holuj, Malgorzata; Lenda, Tomasz; Koralewski, Robert; Bednarski, Marek; Nowinski, Leszek; Wojcikowski, Jacek; Daniel, Wladyslawa A.; Nikiforuk, Agnieszka; Nalepa, Irena; Chmielarz, Piotr; Kusmierczyk, Justyna; Bojarski, Andrzej J.; Popik, Piotr published an article on February 10 ,2018. The article was titled 《Novel multi-target azinesulfonamides of cyclic amine derivatives as potential antipsychotics with pro-social and pro-cognitive effects》, and you may find the article in European Journal of Medicinal Chemistry.Recommanded Product: 4-(Piperazin-1-yl)-1H-indole The information in the text is summarized as follows:

Currently used antipsychotics are characterized by multireceptor mode of action. While antagonism of dopamine D2 receptors is responsible for the alleviation of “”pos.”” symptoms of schizophrenia and the effects at other, particularly serotonergic receptors are necessary for their addnl. therapeutic effects, there is no consensus regarding an “”ideal”” target engagement. Here, a detailed SAR anal. in a series of 45 novel azinesulfonamides of cyclic amine derivatives, involving the aryl-piperazine/piperidine pharmacophore, central alicyclic amine and azinesulfonamide groups has led to the selection of (S)-4-((2-(2-(4-(benzo[b]thiophen-4-yl)piperazin-1-yl)ethyl)pyrrolidin-1-yl)sulfonyl)isoquinoline (62). The polypharmacol. profile of 62, characterized by partial 5-HT1AR agonism, 5-HT2A/5-HT7/D2/D3R antagonism, and blockade of SERT, reduced the “”pos.””-like, and “”neg.””-like symptoms of psychoses. Compound 62 produced no catalepsy, demonstrated a low hyperprolactinemia liability and displayed pro-cognitive effects in the novel object recognition task and attentional set-shifting test. While association of in vitro features with the promising in vivo profile of 62 is still not fully established, its clin. efficacy should be verified in further stages of development. The experimental part of the paper was very detailed, including the reaction process of 4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0Recommanded Product: 4-(Piperazin-1-yl)-1H-indole)

4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0) belongs to piperazines. Two common salts in the form of which piperazine is usually prepared for pharmaceutical or veterinary purposes are the citrate, 3C4H10N2.2C6H8O7 (i.e. containing 3 molecules of piperazine to 2 molecules of citric acid), and the adipate, C4H10N2.C6H10O4 (containing 1 molecule each of piperazine and adipic acid).Recommanded Product: 4-(Piperazin-1-yl)-1H-indole

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Miller-Moslin, Karen; Peukert, Stefan; Jain, Rishi K.; McEwan, Michael A.; Karki, Rajesh; Llamas, Luis; Yusuff, Naeem; He, Feng; Li, Yanhong; Sun, Yingchuan; Dai, Miao; Perez, Lawrence; Michael, Walter; Sheng, Tao; Lei, Huangshu; Zhang, Rui; Williams, Juliet; Bourret, Aaron; Ramamurthy, Arun; Yuan, Jing; Guo, Ribo; Matsumoto, Melissa; Vattay, Anthony; Maniara, Wieslawa; Amaral, Adam; Dorsch, Marion; Kelleher, Joseph F. III published an article in Journal of Medicinal Chemistry. The title of the article was 《1-Amino-4-benzylphthalazines as Orally Bioavailable Smoothened Antagonists with Antitumor Activity》.Application of 1057682-05-9 The author mentioned the following in the article:

Abnormal activation of the Hedgehog (Hh) signaling pathway has been linked to several types of human cancers, and the development of small-mol. inhibitors of this pathway represents a promising route toward novel anticancer therapeutics. A cell-based screen performed in our laboratories identified a new class of Hh pathway inhibitors, 1-amino-4-benzylphthalazines, e.g. I, that act via antagonism of the Smoothened receptor. A variety of analogs were synthesized and their structure-activity relationships determined This optimization resulted in the discovery of high affinity Smoothened antagonists, one of which was further profiled in vivo. This compound displayed a good pharmacokinetic profile and also afforded tumor regression in a genetic mouse model of medulloblastoma. After reading the article, we found that the author used (R)-6-(3-Methylpiperazin-1-yl)nicotinonitrile(cas: 1057682-05-9Application of 1057682-05-9)

(R)-6-(3-Methylpiperazin-1-yl)nicotinonitrile(cas: 1057682-05-9) belongs to piperazines. Piperazines are very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines.Application of 1057682-05-9

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Electric Literature of C5H14Cl2N2On October 1, 2020 ,《Chlorine substituents and linker topology as factors of 5-HT6R activity for novel highly active 1,3,5-triazine derivatives with procognitive properties in vivo》 was published in European Journal of Medicinal Chemistry. The article was written by Sudol, Sylwia; Kucwaj-Brysz, Katarzyna; Kurczab, Rafal; Wilczynska, Natalia; Jastrzebska-Wiesek, Magdalena; Satala, Grzegorz; Latacz, Gniewomir; Gluch-Lutwin, Monika; Mordyl, Barbara; Zeslawska, Ewa; Nitek, Wojciech; Partyka, Anna; Buzun, Kamila; Doroz-Plonka, Agata; Wesolowska, Anna; Bielawska, Anna; Handzlik, Jadwiga. The article contains the following contents:

This study had supplied highly potent 5-HT6R agents with procognitive effects, which represent an original chem. class of 1,3,5-triazines, different than widely studied sulfone and indole-like 5-HT6R ligands. The new compounds I (R1 = Ph, 2,3-Cl2C6H3, 2,5-Cl2C6H3, 3,4-Cl2C6H3, 3,5-Cl2C6H3, 2,4-Cl2C6H3; R2 = H, Me, Et, n-Pr, n-Bu, X = nothing; R2 = H, X = CH2CH2) were rationally designed as modifications of lead, 4-(1-(2-chlorophenoxy)ethyl)-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine, involving an introduction of: (i) two chlorines at the benzene ring and (ii) varied linkers joining the triazine ring to aromatic ethers. Synthesis, in vitro and in vivo biol. tests and computer-aided SAR anal. for new compounds were carried out. Most of the new triazines displayed high affinity and selectivity toward 5-HT6R with respect to 5-HT2AR, 5-HT7R and D2R. The crystallog.-supported docking studies, including quantum-polarized ligand docking (QPLD), indicated that chlorine atoms might be involved in different type of halogen bonding, however, the linker properties seem to predominately affect the 5-HT6R affinity. Compound I (R1 = 2,5-Cl2C6H3; R2 = Et; X = nothing), which displayed: the highest affinity (Ki = 6 nM), very strong 5-HT6R antagonistic action (KB = 27 pM), procognitive effects in vivo in novel object recognition (NOR) test in rats, a very good permeability in PAMPA model and satisfying safety in vitro, was identified as the most potent 1,3,5-triazine agent so far, useful as a new lead for further research. In the experiment, the researchers used 1-Methylpiperazine dihydrochloride(cas: 34352-59-5Electric Literature of C5H14Cl2N2)

1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Electric Literature of C5H14Cl2N2

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

《Synthesis of new antimicrobials. IV. Synthesis of alkylenebis(thiourea) derivatives and their related compounds》 was published in Chemical & Pharmaceutical Bulletin in 1975. These research results belong to Yabuuchi, Takahiro; Hisaki, Masakatu; Matuda, Masahiro; Kimura, Ryuichi. Safety of 1-Methylpiperazine dihydrochloride The article mentions the following:

3,3′-Substituted 1,1′-alkylenebis(thiourea) derivatives, e.g. Et2NCH2CH2NHCSNHCH2CH2NHCSNHCH2CH2NEt2 were prepared from alkylenebis(isothiocyanates) and amines. Also, 3,3′-alkylenebis[2-thio-2,4(1H,3H)quinazolinediones] I (m = 3, 4, 6) were prepared by the reaction of alkylenebis(isothiocyanates) and anthranilic acid, or alkylene diamines and Et o-isothiocyanatobenzoate, resp. In the experiment, the researchers used 1-Methylpiperazine dihydrochloride(cas: 34352-59-5Safety of 1-Methylpiperazine dihydrochloride)

1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Safety of 1-Methylpiperazine dihydrochloride

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Computed Properties of C12H15N3On May 26, 2015, Kooistra, Albert J.; Leurs, Rob; de Esch, Iwan J. P.; de Graaf, Chris published an article in Journal of Chemical Information and Modeling. The article was 《Structure-based prediction of G-protein-coupled receptor ligand function: A β-adrenoceptor case study》. The article mentions the following:

The spectacular advances in G-protein-coupled receptor (GPCR) structure determination have opened up new possibilities for structure-based GPCR ligand discovery. The structure-based prediction of whether a ligand stimulates (full/partial agonist), blocks (antagonist), or reduces (inverse agonist) GPCR signaling activity is, however, still challenging. A total of 31 β1 (β1R) and β2 (β2R) adrenoceptor crystal structures, including antagonist, inverse agonist, and partial/full agonist-bound structures, allowed the authors to explore the possibilities and limitations of structure-based prediction of GPCR ligand function. The authors used all unique protein-ligand interaction fingerprints (IFPs) derived from all ligand-bound β-adrenergic crystal structure monomers to post-process the docking poses of known β1R/β2R partial/full agonists, antagonists/inverse agonists, and physicochem. similar decoys in each of the β1R/β2R structures. The systematic anal. of these 1920 unique IFP-structure combinations offered new insights into the relative impact of protein conformation and IFP scoring on selective virtual screening (VS) for ligands with a specific functional effect. The authors’ studies show that ligands with the same function can be efficiently classified on the basis of their protein-ligand interaction profile. Small differences between the receptor conformation (used for docking) and reference IFP (used for scoring of the docking poses) determine, however, the enrichment of specific ligand types in VS hit lists. Interestingly, the selective enrichment of partial/full agonists can be achieved by using agonist IFPs to post-process docking poses in agonist-bound as well as antagonist-bound structures. The authors have identified optimal structure-IFP combinations for the identification and discrimination of antagonists/inverse agonist and partial/full agonists, and defined a predicted IFP for the small full agonist norepinephrine that gave the highest retrieval rate of agonists over antagonists for all structures (with an enrichment factor of 46 for agonists and 8 for antagonists on average at a 1% false-pos. rate). This β-adrenoceptor case study provides new insights into the opportunities for selective structure-based discovery of GPCR ligands with a desired function and emphasizes the importance of IFPs in scoring docking poses. The results came from multiple reactions, including the reaction of 4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0Computed Properties of C12H15N3)

4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0) belongs to piperazines. Piperazines are very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines.Computed Properties of C12H15N3

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Zhang, Dou-Sheng; Liu, Wen; Li, Ya-Ping; Hu, Chang-Qin published an article in Journal of Planar Chromatography–Modern TLC. The title of the article was 《Establishment and optimization of an HPTLC method for the analysis of gatifloxacin and related substances by design of experiment》.SDS of cas: 182868-72-0 The author mentioned the following in the article:

The objective of this study was to establish and optimize high-performance thin-layer chromatog. (HPTLC) anal. of gatifloxacin and related substances by the method of design of experiment (DOE). First, preliminary screening of 22 solvents was performed using uniform design (UD) to establish the developing solvent proposed to be optimized. The optimal proportions of components in the developing solvent were established by central composite design (CCD) to establish and validate HPTLC anal. of gatifloxacin and related substances. Using DOE, it was found that the optimal proportions (by volume) of components in the developing solvent in the HPTLC anal. method were methanol-1,2-dichloroethane-concentrated ammonia solution-acetonitrile (2.8:7.2:0.5:0.5, ν/ν). Methodol. validation showed that the established HPTLC method could sep. gatifloxacin and 8 related substances with similar structures effectively. In particular, impurity pairs with the greatest separation difficulty (due to their similar polarities and dipole moments), e.g., impurity #3 (8-fluorogatifloxacin) and impurity #8 (gatifloxacin 2-methylpiperazine), impurity #3, and substance #9 (gatifloxacin), could also be separated effectively. The HPTLC method was simple, accurate, reliable, and suitable for rapid qual. anal. of gatifloxacin and related substances in routine tests. Addnl., the anal. results presented here may provide useful supplemental information on the current reversed phase high-performance liquid chromatog. (RP-HPLC) method, especially in terms of the mechanism of normal-phase separation In the experiment, the researchers used many compounds, for example, 1-Cyclopropyl-8-ethoxy-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid(cas: 182868-72-0SDS of cas: 182868-72-0)

1-Cyclopropyl-8-ethoxy-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid(cas: 182868-72-0) is a member of aromaticfluorinated building blocks. Depending on which substituents are present, fluoroaromatic intermediates can be converted into fluorinated or fluorine-free commercial end products.Fluorine-containing aromatics have been incorporated into drugs (hypnotics, tranquilizers, antiinflammatory agents, analgesics, antibacterials).SDS of cas: 182868-72-0

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Synthetic Route of C12H15N3On May 31, 2020, Zhu, Chenghao; Sawrey-Kubicek, Lisa; Beals, Elizabeth; Rhodes, Chris H.; Houts, Hannah Eve; Sacchi, Romina; Zivkovic, Angela M. published an article in Nutrition Research (New York, NY, United States). The article was 《Human gut microbiome composition and tryptophan metabolites were changed differently by fast food and Mediterranean diet in 4 days: a pilot study》. The article mentions the following:

Diets rich in animal source foods vs plant-based diets have different macronutrient composition, and they have been shown to have differential effects on the gut microbiome. In this study, we hypothesized that diets with very different nutrient composition are able to change gut microbiome composition and metabolites in a very short period. We compared a fast food (FF) diet (ie, burgers and fries) with a Mediterranean (Med) diet, which is rich in vegetables, whole grains, olive oil, nuts, and fish. Plasma metabolites and bile acids were analyzed using liquid chromatog.-mass spectrometry. Certain bile-tolerant microbial genera and species including Collinsella, Parabacteroides, and Bilophila wadsworthia significantly increased after the FF diet. Some fiber-fermenting bacteria, including Lachnospiraceae and Butyricicoccus, increased significantly after the Med diet and decreased after the FF diet. Bacterially produced metabolites indole-3-lactic acid and indole-3-propionic acid, which have been shown to confer beneficial effects on neuronal cells, increased after the Med diet and decreased after the FF diet. Interindividual variability in response to the treatments may be related to differences in background diet, for example as shown by differences in Bilophila response in relationship to the saturated fat content of the baseline diet. In conclusion, an animal fat-rich, low-fiber FF diet v. a high-fiber Med diet altered human gut microbiome composition and its metabolites after just 4 days. The results came from multiple reactions, including the reaction of 4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0Synthetic Route of C12H15N3)

4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0) belongs to piperazines. Two common salts in the form of which piperazine is usually prepared for pharmaceutical or veterinary purposes are the citrate, 3C4H10N2.2C6H8O7 (i.e. containing 3 molecules of piperazine to 2 molecules of citric acid), and the adipate, C4H10N2.C6H10O4 (containing 1 molecule each of piperazine and adipic acid).Synthetic Route of C12H15N3

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics