Category: 67914-60-7

On January 1, 2014, Cremonesi, Giuseppe; Dalla Croce, Piero; La Rosa, Concetta published an article.Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone The title of the article was Lewis acid-catalyzed formylation reaction of 4-(piperazin-1-yl)phenols. And the article contained the following:

The Lewis acid-catalyzed reaction of 4-(piperazin-1-yl)phenols I (R1 = Ac, CHO, Boc, PhCH2; R2 = H) with paraformaldehyde in aprotic solvents afforded salicylaldehydes I (R2 = CHO) in good yields. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

The Article related to salicylaldehyde piperazinyl preparation, phenol piperazinyl paraformaldehyde formylation lewis acid catalyst, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

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

On April 15, 2022, Pawara, Rahul; Ahmad, Iqrar; Nayak, Deepika; Belamkar, Sateesh; Surana, Sanjay; Kundu, Chanakya Nath; Patil, Chandragauda; Patel, Harun published an article.Recommanded Product: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone The title of the article was Design and synthesis of the novel, selective WZ4002 analogue as EGFR-L858R/T790M tyrosine kinase inhibitors for targeted drug therapy in non-small-cell lung cancer (NSCLC). And the article contained the following:

To conquer the drug-resistance of first-generation EGFR (epidermal growth factor receptor) kinase inhibitors and second-generation inhibitors’ non-selective toxicities in Non-Small Cell Lung Cancer (NSCLC) patients, a series of WZ4002 derivatives I [R1 = 4-fluorophenyl, 3,4-dichlorophenyl, 4-bromophenyl, etc.; R2 = 3-CH2=CHC(O)NHC6H4, 4-MeC(O)-N(CH2)2N-C6H4, 3-ClCH2C(O)NHC6H4, etc.] were discovered as novel double mutant EGFR-L858R/T790M TK inhibitors. This objective was attained by employing structure-based drug design and traditional optimization strategies based on the WZ4002 scaffold. Among the synthesized compounds I, representative compounds I [R1 = 4-chloro-3-fluorophenyl, 4-bromophenyl; R2 = 3-CH2=CHC(O)-N(CH2)2N-C6H4] displayed significant anti-proliferative activity on the Gefitinib-resistant cell line NCI-H1975, with an IC50 value of 0.179μM and 0.173μM, resp. Also, these compounds exhibited moderate anti-proliferative activity against the A549 cell, with an IC50 of 0.550μM and 0.528μM resp., suggesting their improved selectivity over the mutant EGFR-L858R/T790M. Excitingly, both these compounds showed significant inhibition of the double mutant EGFR-L858R/T790M TK with an IC50 value of 0.0063μM and 0.0060μM, resp. The IC50 values of both the promising compounds against the HepG2 cell line were more than 1μM, indicating safety for normal cells. Covalent docking and MD simulation further confirm their irreversible binding mode with the target protein. These results demonstrate that compounds I [R1 = 4-chloro-3-fluorophenyl, 4-bromophenyl; R2 = 3-CH2=CHC(O)-N(CH2)2N-C6H4] would be promising lead compound-targeting double mutant EGFR-L858R/T790M TK. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Recommanded Product: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

The Article related to phenyl amino pyrimidinyl oxy alkenone preparation antitumor sar, tyrosine kinase inhibition mol docking, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Recommanded Product: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

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

On February 28, 2007, He, Qiuqin; Liu, Chaomei; Li, Ke; Cao, Yongbing published an article.Reference of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone The title of the article was Synthesis and antifungal activities of 1-(1H-1,2,4-triazol-1-y1)-2-(2,4-difluorophenyl)-3-[(4-substituted)-piperazin-1-y1]-2-propanol. And the article contained the following:

According to the structure of fluconazole, eleven target compounds were designed and synthesized. All of them were confirmed by H-NMR or IR spectra, resp. The MIC80 of all the target compounds were determined by the method recommended by the national committee for clin. laboratory standards (NCCLS) using the RPMI 1640 test medium. Eleven target compounds were firstly reported. The results of the preliminary antifungal test showed that all the target compounds exhibited potent antifungal activities to a certain extent. Most of the target compounds showed higher antifungal activities than that of fluconazole. Especially, compound I showed strong antifungal activity with broad antifungal spectrum and was chosen for further study. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Reference of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

The Article related to triazolyl difluorophenyl piperazineyl propanol fluconazole analog synthesis antifungal agent, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Reference of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

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

On February 29, 2008, Zhao, Lihua; Liu, Chaomei; Wu, Qiuye; Zhang, Lurong; Kim, Joanne published an article.SDS of cas: 67914-60-7 The title of the article was Design, synthesis and antitumor activity of thalidomide derivatives. And the article contained the following:

The antitumor activity of thalidomide derivatives [i.e., 2-(2,6-dioxo-3-piperidinyl)-1H-isoindole-1,3(2H)-dione derivatives] was studied. A method for the synthesis of the title compounds is reported here. According to the structure of thalidomide, starting from β-D-glucosamine hydrochloride, twenty compounds were designed and synthesized. Product structures were determined by NMR, IR, MS. The target compounds were evaluated for their anticancer activity. The survival of 4T1 cells was determined Compounds substituted by a 3,4,6-tri-O-acetyl glucopyranoside have better antitumor activity than thalidomide dose. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).SDS of cas: 67914-60-7

The Article related to thalidomide analog glucopyranoside preparation antitumor agent breast cancer, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.SDS of cas: 67914-60-7

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

On April 30, 2007, He, Qiu Qin; Liu, Chao Mei; Li, Ke; Cao, Yong Bing published an article.Category: piperazines The title of the article was Design, synthesis of novel antifungal triazole derivatives with high activities against Aspergillus fumigatus. And the article contained the following:

Based on the active site of Aspergillus fumigatus lanosterol 14α-demethylase (AF-CYP51), novel triazole compounds I (R = aryl) were designed. Their chem. synthesis and the antifungal activities were reported. The results showed that all the target compounds exhibited excellent activities with broad spectrum, in which I (R = 4-FC6H4, 4-H2NCOC6H4, pyridin-4-yl) showed comparable activities against A. fumigatus to the control drug Itraconazole. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Category: piperazines

The Article related to piperazinyl triazole preparation antifungal aspergillus fumigatus, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Category: piperazines

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

On April 20, 2003, Ryu, Jae Chun; Lee, Kwang Jae; Lee, Sang Hee published an article.HPLC of Formula: 67914-60-7 The title of the article was Synthesis of ketoconazole derivatives. And the article contained the following:

For the drug master file (DMF) of ketoconazole, four impurities contained in ketoconazole were synthesized. During the synthesis of I, a new synthetic method of 1,4-dihydropyrazine was established. To oxidize the aminoalc. of I to the aminal I, the standard Swern oxidation condition was modified to mask the nucleophilicity of the amino group temporarily using one equivalent of acetic acid. Derivative II was synthesized via regioselective bromination at the I position of the 4-aminophenol derivative of II using Br2 in the presence of p-TsOH. The etherification of aryl bromide with a phenol derivative compound was accomplished by a modification of the general Cu-mediated reaction condition using excess of the phenol derivative itself as a solvent at elevated temperature (190 °C). The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).HPLC of Formula: 67914-60-7

The Article related to ketoconazole derivative drug master file impurity preparation, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.HPLC of Formula: 67914-60-7

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

On February 29, 1988, Lin, HanFen; Yue, Xiang; Chen, WenBin published an article.Recommanded Product: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone The title of the article was Improved preparation of 1-acetyl-4-(4-hydroxyphenyl)piperazine. And the article contained the following:

The title compound (I) was prepared in 4 steps in 26.4% overall yield starting from diethanolamine. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Recommanded Product: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

The Article related to acetylhydroxyphenylpiperazine, piperazine acetylhydroxyphenyl, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Recommanded Product: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

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

Kumar, J. Ranjith; Nissankararao, Srinath; Ushasri, S.; Rehaman, Sk. A. published an article in 2014, the title of the article was Synthesis and antimicrobial activity of new series of piperazine containing chalcone derivatives.Reference of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone And the article contains the following content:

Treatment of 1-acetyl-4-(4-hydroxyphenyl)piperazine with aromatic or substituted aromatic aldehydes in presence of methanol and potassium hydroxide, formed 3-substituted phenyl-1-(4-(4-hydroxylphenyl)piperzin-1-yl)-prop-2-en-1-one derivatives I (R = Ph, 4-ClC6H4, 4-FC6H4, etc.). These are assayed for their antibacterial activity against Bacillus pumilus, Bacillus subtilis, Escherichia coli, Proteus vulgaris and for antifungal activity against Aspergillus niger, Candida albicans strains. Antibacterial assay revealed that Bacillus subtilis and Proteus vulgaris were the most sensitive bacterial strains to compounds I (R = 4-ClC6H4, 4-FC6H4, 4-O2NC6H4, 2,4-di-MeOC6H3, 2,4-Cl2C6H3) and in the antifungal assay, compounds I (R = Ph, 4-FC6H4, 2,4-Cl2C6H3) were highly effective against Aspergillus niger when compared to other other investigated strains. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Reference of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

The Article related to piperazine chalcone preparation antibacterial antifungal, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Reference of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

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

On June 30, 1995, Camps, Pelayo; Farres, Xavier; Garcia, M. Luisa; Ginesta, Joan; Pascual, James; Mauleon, David; Carganico, Germano published an article.Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone The title of the article was Stereoselective syntheses of both enantiomers of ketoconazole from (R)- and (S)-epichlorohydrin. And the article contained the following:

Stereoselective syntheses of both enantiomers of ketoconazole (I) from com. available (R)- or (S)-epichlorohydrin has been developed. The key step of these syntheses involves the selective substitution of the methylene chlorine atom by benzoate on a mixture of (2S,4R)-II and (2R,4R)-II or of their enantiomers, followed by crystallization of the corresponding cis-benzoates, from which (+)- or (-)-I were obtained as described for (±)-I. The ee’s of (+)- and (-)-ketoconazole were determined by HPLC on the CSP Chiralcel OD-H. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

The Article related to ketoconazole enantiomer stereoselective synthesis, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

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

On October 15, 2010, Zheng, Chun-zhi; Zhang, Guo-hua; Jiang, Da-feng published an article.Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone The title of the article was New process for synthesis of 1-acetyl-4-(4-hydroxyphenyl)piperazine. And the article contained the following:

The synthesis of the target compound was achieved (37.5% overall yield) by a sequence involving a chlorination, cyclization and acylation using bis(2-chloroethyl)amine hydrochloride and aminophenol as reactants. The product thus obtained [i.e., 1-[4-(4-Hydroxyphenyl)-1-piperazinyl]ethanone] was confirmed by IR, 1H-NMR. The experimental process involved the reaction of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone(cas: 67914-60-7).Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

The Article related to ethanone hydroxyphenyl piperazine preparation, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Quality Control of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone

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