Category: piperidines

HPLC of Formula: 39546-32-2On March 1, 2021, Mizukawa, Yuki; Ikegami-Kawai, Mayumi; Horiuchi, Masako; Kaiser, Marcel; Kojima, Masayoshi; Sakanoue, Seiki; Miyagi, Seiya; Nanga Chick, Christian; Togashi, Hiroyuki; Tsubuki, Masayoshi; Ihara, Masataka; Usuki, Toyonobu; Itoh, Isamu published an article in Bioorganic & Medicinal Chemistry. The article was 《Quest for a potent antimalarial drug lead: Synthesis and evaluation of 6,7-dimethoxyquinazoline-2,4-diamines》. The article mentions the following:

Quinazolines have long been known to exert varied pharmacol. activities that make them suitable for use in treating hypertension, viral infections, tumors, and malaria. Since 2014, author’s have synthesized approx. 150 different 6,7-dimethoxyquinazoline-2,4-diamines and evaluated their antimalarial activity via structure-activity relationship studies. Here, author’s summarize the results and report the discovery of 6,7-dimethoxy-N4-(1-phenylethyl)-2-(pyrrolidin-1-yl)quinazolin-4-amine, which exhibits high antimalarial activity as a promising antimalarial drug lead. The results came from multiple reactions, including the reaction of Piperidine-4-carboxamide(cas: 39546-32-2HPLC of Formula: 39546-32-2)

Piperidine-4-carboxamide(cas: 39546-32-2) belongs to anime. The reaction of alkyl halides, R―X, where X is a halogen, or analogous reagents with ammonia (or amines) is useful with certain compounds. Not all alkyl halides are effective reagents; the reaction is sluggish with secondary alkyl groups and fails with tertiary ones. Its usefulness is largely confined to primary alkyl halides (those having two hydrogen atoms on the reacting site).HPLC of Formula: 39546-32-2

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Related Products of 1690-72-8On October 31, 1990 ,《Synthesis and biological activity of 1,2,4-oxadiazole derivatives: highly potent and efficacious agonists for cortical muscarinic receptors》 appeared in Journal of Medicinal Chemistry. The author of the article were Street, Leslie J.; Baker, Raymond; Book, Tracey; Kneen, Clare O.; MacLeod, Angus M.; Merchant, Kevin J.; Showell, Graham A.; Saunders, John; Herbert, Richard H.. The article conveys some information:

The synthesis and biochem. evaluation of novel 1,2,4-oxadiazole-based muscarinic agonists which can readily penetrate into the CNS is reported. Efficacy and binding of these compounds are markedly influenced by the structure and physicochem. properties of the cationic head group. In a series of azabicyclic ligands efficacy and affinity are influenced by the size of the surface area presented to the receptor at the active site, and the degree of conformational flexibility. The exo-1-azanorbornane I represents the optimum arrangement, and this compound is one of the most efficacious and potent muscarinic agonists known. In a series of isoquinuclidine-based muscarinic agonists efficacy and affinity are influenced by the geometry between the cationic head group and H-bond acceptor pharmacophore and steric bulk in the vicinity of the base. The anti configuration represented by II is optimal for muscarinic activity. Ligands with pKa <6.5 show poor binding to the muscarinic receptor as exemplified by the diazabicyclic derivative III. In the experiment, the researchers used Methyl 1-methylpiperidine-3-carboxylate(cas: 1690-72-8Related Products of 1690-72-8)

Methyl 1-methylpiperidine-3-carboxylate(cas: 1690-72-8) is a member of piperidine. Piperidine is a key saturated heterocyclic scaffold found in several of the top-selling small molecule pharmaceuticals and natural alkaloids, with a diverse range of biological activities. Hence, continuous efforts have been made to develop convenient methods to prepare piperidine derivatives.Related Products of 1690-72-8

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Category: piperidinesOn November 30, 2007 ,《Development and validation of TLC-densitometric method for resolution and determination of enantiomeric purity of ropivacaine, using different cyclodextrins as chiral selector》 appeared in Current Pharmaceutical Analysis. The author of the article were Taha, Elham A.. The article conveys some information:

A novel economic procedure for stereoselective separation and determination of R(+)- and S(-)- ropivacaine was described using different thin layer chromatog. plates and different cyclodextrins at different temperatures The spots were detected either with iodine vapors or UV lamp 254 nm, followed by densitometric measurements at 262 nm. Comparative study was achieved using different cyclodextrins namely, hydroxypropyl-β-cyclodextrin (HP-β-CD), methyl-β-cyclodextrin (M-β-CD), and dimethyl-β-cyclodextrin (DM-β-CD) as chiral selectors. The mobile phase enabling successful resolution of (±) ropivacaine was acetonitrile: water (17:3 volume/volume) containing 1 mM of DM-β-CD at ambient temperature 25 ± 2°. All variables affecting the resolution, such as concentration of different chiral selectors, temperature, and pH were investigated and the conditions were optimized. The procedure provided a linear response over the concentration range of 1.25-35 μg/spot for determination of R(+)- and S(-)- enantiomers (r = 0.9998, n = 8), (r = 0.9998, n = 6) with acceptable precision (% RSD <1.5) and accuracy (% RE = -1.18 to 2.00). Limits of detection and quantification were found to be 0.29 μg/spot and 0.96 μg/spot for (R) and 0.26 μg/spot and 0.86 μg/spot for (S) resp. The developed method was validated and proved to be robust. Ropivacaine sample solution was found to be stable for one weak in methanol. The proposed method was found to be selective and accurate for identification and quant. determination of enantiomeric purity of ropivacaine in bulk powder and pharmaceutical dosage form. In the experiment, the researchers used (R)-N-(2,6-Dimethylphenyl)-1-propylpiperidine-2-carboxamide hydrochloride(cas: 112773-90-7Category: piperidines)

(R)-N-(2,6-Dimethylphenyl)-1-propylpiperidine-2-carboxamide hydrochloride(cas: 112773-90-7) belongs to piperidines. Piperidine derivatives are also used in solid-phase peptide synthesis (SPPS) and many degradation reactions. Category: piperidines

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

《Design, synthesis and biological evaluation of imidazo[1,5-a]pyrazin-8(7H)-one derivatives as BRD9 inhibitors》 was written by Zheng, Peiyuan; Zhang, Jian; Ma, Hui; Yuan, Xinrui; Chen, Pan; Zhou, Jinpei; Zhang, Huibin. HPLC of Formula: 39546-32-2 And the article was included in Bioorganic & Medicinal Chemistry on April 1 ,2019. The article conveys some information:

BRD9 is the subunit of mammalian SWI/SNF chromatin remodeling complex (BAF). SWI/SNF complex mutations were found in nearly 20% of human cancers. The biol. role played by BRD9 bromodomain remains poorly understood, and it is therefore imperative to identify potent and highly selective inhibitors to effectively explore the biol. of individual bromodomain proteins. In this paper, we synthesized a series of imidazo[1,5-a]pyrazin-8(7H)-one derivatives as potent BRD9 inhibitors and evaluated their BRD9 inhibitory activity in vitro and anti-proliferation effects against tumor cells. Gratifyingly, compound 27(I) and 29(II) exhibited robust potency of BRD9 inhibition with IC50 values of 35 and 103 nM resp. Docking studies were performed to explain the structure-activity relationship. Furthermore, I potently inhibited cell proliferation in cell lines A549 and EOL-1 with an IC50 value of 6.12 μM and 1.76 μM resp. The chem. probe, I, was identified that should prove to be useful in further exploring BRD9 bromodomain biol. in both in vitro and in vivo settings. In the experimental materials used by the author, we found Piperidine-4-carboxamide(cas: 39546-32-2HPLC of Formula: 39546-32-2)

Piperidine-4-carboxamide(cas: 39546-32-2) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.HPLC of Formula: 39546-32-2

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Safety of 2-(Piperidin-4-yl)ethanolIn 2012 ,《Investigations of primary and secondary amine carbamate stability by 1H NMR spectroscopy for post combustion capture of carbon dioxide》 appeared in Journal of Chemical Thermodynamics. The author of the article were Fernandes, Debra; Conway, William; Burns, Robert; Lawrance, Geoffrey; Maeder, Marcel; Puxty, Graeme. The article conveys some information:

Carbamate formation is one of the major chem. reactions that can occur in solution in the capture of CO2 by amine-based solvents, and carbamate formation makes a significant enthalpy contribution to the absorption-desorption of CO2 that occurs in the absorber/stripper columns of the PCC process. Consequently, the formation of carbamates of selected series of primary and secondary amines over the temperature range (288 to 318) K has been investigated by equilibrium 1H NMR studies, and the stability constants (K 9) for the equilibrium:RNH2+HCO3-⇄K9RNHCOO-+H2Oare reported. van’t Hoff analyses have resulted in standard molar enthalpies, ΔHmo, and entropies, ΔSmo, of carbamate formation. A ΔHmo-ΔSmo plot generates a linear correlation for carbamate formation (providing a mean standard molar free energy, ΔGmo, for carbamate formation of about -7 kJ · mol-1), and this relationship helps provide a guide to the selection of an amine(s) solvent for CO2 capture, in terms of enthalpy considerations. A linear ΔHmo-ΔSmo plot also occurs for carbamate protonation. The formation of the carbamates has been correlated with systematic changes in composition and structure, and steric effects have been identified by comparing mol. geometries obtained using d. functional B3LYP/6-311++G(d,p) calculations Trends in steric effects have been identified in the series of compounds monoethanolamine (MEA), 1-amino-2-propanol, 2-amino-1-propanol (AP) and 2-amino-2-methyl-1-propanol (AMP). In the case of 2-piperidinemethanol, 2-piperidineethanol and 3-piperidinemethanol, strong intramol. hydrogen bonding is shown to be the likely cause for lack of carbamate formation, and in the ring systems of pyrrolidine, morpholine, piperidine and thiomorpholine trends in carbamate formation (as given by K 9) have been correlated with the internal ring angle at the amine nitrogen, as well as the planarity of the environment around the nitrogen atom. In the part of experimental materials, we found many familiar compounds, such as 2-(Piperidin-4-yl)ethanol(cas: 622-26-4Safety of 2-(Piperidin-4-yl)ethanol)

2-(Piperidin-4-yl)ethanol(cas: 622-26-4) have been used as an intermediate in the synthetic preparation of cellular-active allosteric inhibitors of FAKSafety of 2-(Piperidin-4-yl)ethanol

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Related Products of 87120-72-7In 2021 ,《Identification of First-in-Class Inhibitors of Kallikrein-Related Peptidase 6 That Promote Oligodendrocyte Differentiation》 appeared in Journal of Medicinal Chemistry. The author of the article were Ait Amiri, Sabrina; Deboux, Cyrille; Soualmia, Feryel; Chaaya, Nancy; Louet, Maxime; Duplus, Eric; Betuing, Sandrine; Nait Oumesmar, Brahim; Masurier, Nicolas; El Amri, Chahrazade. The article conveys some information:

Multiple sclerosis (MS) is an autoimmune demyelinating disease of the central nervous system (CNS) that causes severe motor, sensory, and cognitive impairments. Kallikrein-related peptidase (KLK)6 is the most abundant serine protease secreted in the CNS, mainly by oligodendrocytes, the myelin-producing cells of the CNS, and KLK6 is assumed to be a robust biomarker of MS, since it is highly increased in the cerebrospinal fluid (CSF) of MS patients. Here, we report the design and biol. evaluation of KLK6′s low-mol.-weight inhibitors, para-aminobenzyl derivatives Interestingly, selected hit compounds were selective of the KLK6 proteolytic network encompassing KLK1 and plasmin that also participate in the development of MS physiopathol. Moreover, hits were found noncytotoxic on primary cultures of murine neurons and oligodendrocyte precursor cells (OPCs). Among them, two compounds (32 and 42) were shown to promote the differentiation of OPCs into mature oligodendrocytes in vitro constituting thus emerging leads for the development of regenerative therapies. In the part of experimental materials, we found many familiar compounds, such as tert-Butyl 4-aminopiperidine-1-carboxylate(cas: 87120-72-7Related Products of 87120-72-7)

tert-Butyl 4-aminopiperidine-1-carboxylate(cas: 87120-72-7) belongs to anime. Amines can be classified according to the nature and number of substituents on nitrogen. Aliphatic amines contain only H and alkyl substituents. Aromatic amines have the nitrogen atom connected to an aromatic ring.Important amines include amino acids, biogenic amines, trimethylamine, and aniline. Inorganic derivatives of ammonia are also called amines, such as monochloramine (NClH2).Related Products of 87120-72-7

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

In 2022,Wang, Chang; Qu, Lunjun; Chen, Xiaohong; Zhou, Qian; Yang, Yan; Zheng, Yan; Zheng, Xian; Gao, Liang; Hao, Jinqiu; Zhu, Lingyun; Pi, Bingxue; Yang, Chaolong published an article in Advanced Materials (Weinheim, Germany). The title of the article was 《Poly(arylene piperidine) Quaternary Ammonium Salts Promoting Stable Long-Lived Room-Temperature Phosphorescence in Aqueous Environment》.SDS of cas: 1445-73-4 The author mentioned the following in the article:

Room-temperature phosphorescence (RTP) materials have garnered considerable research attention owing to their excellent luminescence properties and potential application prospects in anti-counterfeiting, information storage, and optoelectronics. However, several RTP systems are extremely sensitive to humidity, and consequently, the realization of long-lived RTP in water remains a formidable challenge. Herein, a feasible and effective strategy is presented to achieve long-lived polymeric RTP systems, even in an aqueous environment, through doping of synthesized polymeric phosphor PBHDB into a poly(Me methacrylate) (PMMA) matrix. Compared to the precursor polymer PBN and organic mol. HDBP, a more rigid polymer microenvironment and electrostatic interaction are formed between the PMMA matrix and polymer PBHDB, which effectively reduce the nonradiative decay rate of triplet excitons and dramatically increase the phosphorescence intensity. Specifically, the phosphorescence lifetime of the PBHDB@PMMA film (1258.62 ms) is much longer than those of PBN@PMMA (674.20 ms) and HDBP@PMMA (1.06 ms). Most importantly, a bright-green afterglow can be observed after soaking the PBHDB@PMMA film in water for more than a month. The excellent water resistance and reversible response properties endow these systems with promising potential for dynamic information encryption even in water.1-Methyl-4-piperidone(cas: 1445-73-4SDS of cas: 1445-73-4) was used in this study.

1-Methyl-4-piperidone(cas: 1445-73-4) is a member of piperidine. Piperidine is ubiquitous structural motif widely occurred in diverse synthetically and naturally occurring bioactive molecules. Piperidines are an immensely important class of compounds medicinally: the piperidine ring is the most common heterocyclic subunit among FDA approved drugs.SDS of cas: 1445-73-4

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Misal Castro, Luis C.; Sultan, Ibrahim; Nishi, Kohei; Tsurugi, Hayato; Mashima, Kazushi published their research in Journal of Organic Chemistry in 2021. The article was titled 《Direct Synthesis of Indoles from Azoarenes and Ketones with Bis(neopentylglycolato)diboron Using 4,4′-Bipyridyl as an Organocatalyst》.Safety of 1-Methyl-4-piperidone The article contains the following contents:

Multifunctionalized indole derivatives were prepared by reducing azoarenes in the presence of ketones and bis(neopentylglycolato)diboron (B2nep2) with a catalytic amount of 4,4′-bipyridyl under neutral reaction conditions, where 4,4′-bipyridyl acted as an organocatalyst to activate the B-B bond of B2nep2 and form N,N’-diboryl-1,2-diarylhydrazines as a key intermediate. Further reaction of N,N’-diboryl-1,2-diarylhydrazines with ketones afforded N-vinyl-1,2-diarylhydrazines, which rearranged to the corresponding indoles via the Fischer indole mechanism. This organocatalytic system was applied to diverse alkyl cyclic ketones, dialkyl, and alkyl/aryl ketones, including heteroatoms. Me alkyl ketones gave the corresponding 2-methyl-3-substituted indoles in a regioselective manner. This protocol allowed us to expand the preparation of indoles having high compatibility with not only electron-donating and electron-withdrawing groups but also N- and O-protecting functional groups. In the part of experimental materials, we found many familiar compounds, such as 1-Methyl-4-piperidone(cas: 1445-73-4Safety of 1-Methyl-4-piperidone)

1-Methyl-4-piperidone(cas: 1445-73-4) is a member of piperidine. Piperidine is a key saturated heterocyclic scaffold found in several of the top-selling small molecule pharmaceuticals and natural alkaloids, with a diverse range of biological activities. Hence, continuous efforts have been made to develop convenient methods to prepare piperidine derivatives.Safety of 1-Methyl-4-piperidone

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

《Discovery of Reversible Inhibitors of KDM1A Efficacious in Acute Myeloid Leukemia Models》 was written by Romussi, Alessia; Cappa, Anna; Vianello, Paola; Brambillasca, Silvia; Cera, Maria Rosaria; Dal Zuffo, Roberto; Faga, Giovanni; Fattori, Raimondo; Moretti, Loris; Trifiro, Paolo; Villa, Manuela; Vultaggio, Stefania; Cecatiello, Valentina; Pasqualato, Sebastiano; Dondio, Giulio; So, Chi Wai Eric; Minucci, Saverio; Sartori, Luca; Varasi, Mario; Mercurio, Ciro. HPLC of Formula: 109384-19-2 And the article was included in ACS Medicinal Chemistry Letters in 2020. The article conveys some information:

Lysine-specific demethylase 1 (LSD1 or KDM1A) is a FAD-dependent enzyme that acts as a transcription corepressor or coactivator by regulating the methylation status of histone H3 lysines K4 and K9, resp. KDM1A represents an attractive target for cancer therapy. While, in the past, the main medicinal chem. strategy toward KDM1A inhibition was based on the optimization of ligands that irreversibly bind the FAD cofactor within the enzyme catalytic site, we and others have also identified reversible inhibitors. Herein we reported the discovery of 5-imidazolylthieno[3,2-b]pyrroles, a new series of KDM1A inhibitors endowed with picomolar inhibitory potency, active in cells and efficacious after oral administration in murine leukemia models. In the experiment, the researchers used many compounds, for example, tert-Butyl 4-hydroxypiperidine-1-carboxylate(cas: 109384-19-2HPLC of Formula: 109384-19-2)

tert-Butyl 4-hydroxypiperidine-1-carboxylate(cas:109384-19-2) is a 4-hydroxypyridine with a boc protecting group used in the preparation of neurologically active agents and other pharmaceutical compounds.HPLC of Formula: 109384-19-2

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

《Design, synthesis and biological activities of piperidine-spirooxadiazole derivatives as α7 nicotinic receptor antagonists》 was published in European Journal of Medicinal Chemistry in 2020. These research results belong to Zhang, Han; He, Xiaomeng; Wang, Xintong; Yu, Bo; Zhao, Siqi; Jiao, Peili; Jin, Hongwei; Liu, Zhenming; Wang, KeWei; Zhang, Liangren; Zhang, Lihe. Category: piperidines The article mentions the following:

7 Nicotinic acetylcholine receptors (nAChRs) expressed in the nervous and immune systems was suggested to play important roles in the control of inflammation. However, the lack of antagonist tools specifically inhibiting α7 nAChR impedes the validation of the channel as therapeutic target. To discover a selective α7 antagonist, a pharmacophore-based virtual screening and identified a piperidine-spirooxadiazole derivative T761-0184 that acts as a α7 antagonist. A series of novel piperidine-spirooxadiazole derivatives were subsequently synthesized and evaluated using two-electrode voltage clamp (TEVC) assay in Xenopus oocytes. Lead compounds from two series inhibited α7 with their IC50 values ranging from 3.3μM to 13.7μM. Compound 3-(4-Bromophenyl)-8-methyl-1-oxa-2,4,8-triazaspiro[4.5]dec-2-ene exhibited α7 selectivity over other α4β2 and α3β4 nAChR subtypes. The anal. of structure-activity relationship (SAR) provides valuable insights for further development of selective α7 nAChR antagonists. In the experiment, the researchers used 1-Methyl-4-piperidone(cas: 1445-73-4Category: piperidines)

1-Methyl-4-piperidone(cas: 1445-73-4) is a member of piperidine. Piperidine is ubiquitous structural motif widely occurred in diverse synthetically and naturally occurring bioactive molecules. Piperidines are an immensely important class of compounds medicinally: the piperidine ring is the most common heterocyclic subunit among FDA approved drugs.Category: piperidines

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem