Category: esters-buliding-blocks

Dowgiallo, Matthew G.; Miller, Brandon C.; Kassu, Mintesinot; Smith, Kenneth P.; Fetigan, Andrew D.; Guo, Jason J.; Kirby, James E.; Manetsch, Roman published an article in 2022, the title of the article was The convergent total synthesis and antibacterial profile of the natural product streptothricin F.Reference of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate And the article contains the following content:

A convergent, diversity-enabling total synthesis of the natural product streptothricin F has been achieved. Herein, authors describe the potent antimicrobial activity of streptothricin F and highlight the importance of a total synthesis that allows for the installation of practical divergent steps for medicinal chem. exploits. Key features of synthesis include a Burgess reagent-mediated 1,2-anti-diamine installation, diastereoselective azidation of a lactam enolate, and a mercury(II) chloride-mediated desulfurization-guanidination. The development of this chem. enables the synthesis and structure-activity studies of streptothricin F analogs. The experimental process involved the reaction of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate(cas: 2873-29-2).Reference of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate

The Article related to streptothricin f convergent total synthesis antibacterial, Biomolecules and Their Synthetic Analogs: Other Bacterial and Fungal Metabolites and other aspects.Reference of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On August 4, 2017, Makrerougras, Mehdi; Coffinier, Romain; Oger, Samuel; Chevalier, Arnaud; Sabot, Cyrille; Franck, Xavier published an article.SDS of cas: 3976-69-0 The title of the article was Total Synthesis and Structural Revision of Chaetoviridins A. And the article contained the following:

The first synthesis of the proposed structures of chaetoviridins A has been achieved in 10 steps by controlling the syn- or anti-aldol side chain. The angular lactone has been regioselectively introduced by condensation of a chiral dioxin-4-one to cazisochromene. Comparison of the NMR and CD data of the synthesized and reported natural products led to the complete reassignment of chaetoviridin A to I and renaming of the chaetoviridins. The experimental process involved the reaction of (R)-Methyl 3-hydroxybutanoate(cas: 3976-69-0).SDS of cas: 3976-69-0

The Article related to chaetoviridin a synthesis absolute configuration revision, Biomolecules and Their Synthetic Analogs: Other Bacterial and Fungal Metabolites and other aspects.SDS of cas: 3976-69-0

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On April 26, 2012, Badiger, Sangamesh; Behnke, Dirk; Betschart, Claudia; Cotesta, Simona; Hintermann, Samuel; Ofner, Silvio; Pandit, Chetan; Roy, Bernard Lucien published a patent.Synthetic Route of 1198284-94-4 The title of the patent was Preparation of diazaspiro[5.5]undecanes as orexin receptor inhibitors. And the patent contained the following:

The title compounds I [A = (un)substituted 5-6 membered aromatic ring which contain 1-4 heteroatoms selected from N, O and S; m, n = 0-6; R1, R2 = halo alkyl, cycloalkyl, etc.; X1 = C(O) and X2 = N(LB); or X1 = N(LB) and X2 = C(O); L = C(R6)2; R6 = H, alkyl, cycloalkyl, etc.; or two R6 together with the carbon atom to which they are bound form cycloalkyl; B = (un)substituted 5-6 membered monocyclic or 8-10 membered fused bicyclic aromatic ring which may contain 1-4 heteroatoms selected from N, O and S], useful as orexin receptor inhibitors, were prepared E.g., a multi-step synthesis of II, starting from 2,9-diazaspiro[5.5]undecan-1-one trifluoroacetate and 2-chloro-4,6-dimethylpyrimidine, was described. Exemplified compounds I were tested for inhibiting human orexin 1 and human orexin 2 receptors (data given). Pharmaceutical composition comprising the compound I was disclosed. The experimental process involved the reaction of tert-Butyl 1-oxo-2,9-diazaspiro[5.5]undecane-9-carboxylate(cas: 1198284-94-4).Synthetic Route of 1198284-94-4

The Article related to diazaspiroundecane preparation orexin receptor inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Synthetic Route of 1198284-94-4

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ali, Ahmed R.; El-Bendary, Eman R.; Ghaly, Mariam A.; Shehata, Ihsan A. published an article in 2018, the title of the article was Synthesis, in vitro anticancer evaluation, and in silico studies of new thiazolo[3,2-a]pyrimidin-5-one derivatives.COA of Formula: C6H8O3 And the article contains the following content:

Synthesis of thiazolo[3,2-a]pyrimidin-5-ones derivatives I [R = H, Me, Cl] and II [R1 = Me, NH2; X = NH, O] were developed and evaluated against antitumor activity. The target compounds I and II showed observed activity against Renal UO-31 cancer cell line with cell growth promotion 52.72%-64.52%. Assessment of toxicities, drug likeness and drug score profiles were reported. Some of the synthesized compounds showed good docking scores with potential anticancer targets. In vitro anticancer evaluation, together with in silico studies, revealed that compounds I [R = Me, Cl] and II [R = R1 = Me; X = O] were the most active members in this study. The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).COA of Formula: C6H8O3

The Article related to thiazolopyrimidinone preparation antitumor human docking, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.COA of Formula: C6H8O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On June 11, 2020, Hu, Yonghan; Wu, Dongdong; Peng, Wei; Lu, Liang; Li, Xin; Zhang, Xiuchun; Wang, Ruzhi; Zhu, Sheng; Huang, Bin; Liu, Tao; Zhu, Jinlian; Wu, Yuchuan published a patent.Recommanded Product: 1198284-94-4 The title of the patent was Heterocyclic compound, application and pharmaceutical composition and application. And the patent contained the following:

The invention disclosed a kind of heterocyclic compound, its preparation method and application. The claimed compound is shown in structure I (R1 = H, F, difluoromethyl, OMe, cyclopropyl, etc.; Y1 = N or CH; Y2 = N, CH, C(F), etc.; R9 = H, Me, or difluoromethyl; X1 = N, CH, C(OH), etc.; s,t = 0 or 1; X3 = N; X2 = CH2, or C(O); X4 = hetero atom containing fragment forming heterocycle; X6 = C(O), or CH2. CHR; R = C1-4 alkyl; X5 = N or CH; R6 = H, halo, cyclopropyl, etc.; R7 = H or halo; R8 = (un)substituted C1-4 alkyl, halo, cyclopropyl, oe H). The claimed compound is prepared via multiple steps (procedure given). The prepared compound can be used as RET kinase inhibitor for treating and preventing diseases mediated by abnormal expression of RET such as cancers (papillary thyroid carcinoma, medullary thyroid carcinoma, pheochromocytoma, pancreatic ductal adenocarcinoma, multiple endocrine tumors (also for example MEN2A or MEN2B), breast cancer (also for example metastatic breast cancer), testicular cancer, small cell lung cancer, Non-small cell lung cancer, chronic bone marrow mononuclear leukemia, colon cancer, rectal cancer, ovarian cancer, or salivary adenocarcinoma). The experimental process involved the reaction of tert-Butyl 1-oxo-2,9-diazaspiro[5.5]undecane-9-carboxylate(cas: 1198284-94-4).Recommanded Product: 1198284-94-4

The Article related to heterocyclic compound preparation ret kinase inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Recommanded Product: 1198284-94-4

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On February 24, 2022, Su, Wei-Guo; Zhang, Weihan; Deng, Wei; Yang, Haibin published a patent.Formula: C9H8F2O2 The title of the patent was Preparation of pyrimidinone compounds as RIPK1 kinase inhibitors and uses thereof. And the patent contained the following:

The invention relates to pyrimidinone compounds of formula I and their preparation and use RIPK1 kinase inhibitors. Compounds of formula I wherein R1 is H, C1-6 alkyl, C1-6 haloalkyl, etc.; R2 is H, halo, CN, etc.; Z is O, NR3 and CR4R5; R3 is H and C1-6 alkyl; R4 and R5 are each independently H, halo, CN, etc.; ring A is (un)substituted Ph and 5- to 6-membered heteroaryl; ring B is (un)substituted 5- to 12-membered heteroaryl, p is 0 and 1; and their pharmaceutically acceptable salts, solvates, racemic mixtures, enantiomers, diastereomers and tautomers, are claimed. Example compound II was prepared by a multistep procedure (procedure given). The invention compounds were evaluated for their RIPK1 kinase inhibitor activity (data given). The experimental process involved the reaction of Methyl 2-(2,6-difluorophenyl)acetate(cas: 872046-08-7).Formula: C9H8F2O2

The Article related to pyrimidinone preparation ripk1 kinase inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Formula: C9H8F2O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On October 26, 2012, Almstetter, Michael; Thormann, Michael; Treml, Andreas; Traube, Nadine published a patent.Product Details of 142327-44-4 The title of the patent was Pyrazolo[4,3-d]pyrimidines useful as kinase inhibitors and their preparation. And the patent contained the following:

The invention relates to pyrazolo[4,3-d]pyrimidine compounds of formula I that are capable of inhibiting one or more kinases, especially SYK (Spleen Tyrosine Kinase), LRRK2 (Leucine-rich repeat kinase 2) and/or MYLK (Myosin light chain kinase) or mutants thereof. The compounds find applications in the treatment of a variety of diseases. Compounds of formula I wherein A is NH, O, S, CO, etc.; R1 is alkyl, alkenyl, alkynyl, aryl, etc.; R2 is alkyl, alkenyl, alkynyl, heteroaryl, etc.; R3 is H, halo, NO2, N3, etc.; and pharmaceutically acceptable salts, solvates, hydrates, and pharmaceutically acceptable formulations thereof, are claimed. Example compound II was prepared by amination of 7-chloro-2-(4-methoxybenzyl)-5-phenyl-2H-pyrazolo[4,3-d]pyrimidine with 1H-indazol-5-amine followed by debenzylation. All the invention compounds were evaluated for their kinase inhibitory activity. From the assay, it was determined that compound II exhibited Ki value of less than 10 nM towards SYK, and an IC50 value in the range of 100 nM to 1000 nM towards LRRK2. The experimental process involved the reaction of Methyl 2-(3-formylphenyl)acetate(cas: 142327-44-4).Product Details of 142327-44-4

The Article related to pyrazolopyrimidine preparation kinase inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Product Details of 142327-44-4

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On May 15, 2020, Li, Yitao; Lin, Jian; Xu, Junxing; Xiao, Yu; Liu, Xinshuo published a patent.Related Products of 872046-08-7 The title of the patent was Pyrimidinium compound and preparation method and application thereof. And the patent contained the following:

The pyrimidinium compound is represented for example by formula I or a stereoisomer, a nitrogen oxide and a salt thereof of a pyrimidinium compound represented by the formula, a preparation method of the pyrimidinium compound, and an application thereof as an insecticide in agriculture, and a form of an insecticide composition thereof, and a method for controlling pests using the compounds The experimental process involved the reaction of Methyl 2-(2,6-difluorophenyl)acetate(cas: 872046-08-7).Related Products of 872046-08-7

The Article related to pyrimidinium compound preparation insecticide, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Related Products of 872046-08-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On August 2, 2019, Gehringer, Matthias; Mader, Patrick; Gersbach, Philipp; Pfeiffer, Bernhard; Scherr, Nicole; Dangy, Jean-Pierre; Pluschke, Gerd; Altmann, Karl-Heinz published an article.Safety of Methyl 2-cyclopentanonecarboxylate The title of the article was Configurationally Stabilized Analogs of M. ulcerans Exotoxins Mycolactones A and B Reveal the Importance of Side Chain Geometry for Mycolactone Virulence. And the article contained the following:

Mycolactones A/B are exotoxins of Mycobacterium ulcerans that are the mol. cause of Buruli ulcer. Mycolactones A/B represent a rapidly equilibrating mixture of Z/E isomers about the C4’=C5′ double bond of the C5-side chain. Here, we describe the syntheses of mycolactone analogs with configurationally stable C5-side chains (E mimetic; Z mimetics). Based on the cytotoxicity of the analogs, the Δ4′,5′-trans isomer of mycolactones A/B appears to be the major virulence factor. The experimental process involved the reaction of Methyl 2-cyclopentanonecarboxylate(cas: 10472-24-9).Safety of Methyl 2-cyclopentanonecarboxylate

The Article related to mycolactone analog preparation cytotoxicity, Biomolecules and Their Synthetic Analogs: Other Bacterial and Fungal Metabolites and other aspects.Safety of Methyl 2-cyclopentanonecarboxylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On August 31, 2013, Camarasa, Marta; Barnils, Christian; Puig de la Bellacasa, Raimon; Teixido, Jordi; Borrell, Jose I. published an article.Category: esters-buliding-blocks The title of the article was A new and practical method for the synthesis of 6-aryl-5,6-dihydropyrido[2,3-d]pyrimidine-4,7(3H,8H)-diones. And the article contained the following:

A one step general synthetic method for the synthesis of 6-aryl-5,6-dihydropyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione derivatives was described. This methodol. is based on treating a 2-aryl-substituted acrylate with a 6-amino-4(3H)-pyrimidinone derivative in the presence of a base under microwave irradiation conditions. The resulting pyrido[2,3-d]pyrimidine derivatives present an aryl substituent at position C6, precisely the one directly related to the biol. activity of such heterocyclic compounds These protocols were extended to other 2-alkyl-substituted and 3-alkyl (or aryl)-substituted acrylate derivatives but with lower yields. The synthesis of the target compounds was achieved by a reaction of 2,6-diamino-4(3H)-pyrimidinone with α-(methylene)benzeneacetic acid Me ester derivatives (acrylate esters), α-methylene-1-naphthaleneacetic acid Me ester, 2-methyl-2-propenoic acid Me ester. 6-Amino-2-(methylthio)-4(3H)-pyrimidinone was also a suitable starting material. The title compounds thus formed included 2-amino-5,8-dihydro-6-(phenyl)pyrido[2,3-d]pyrimidine-4,7(3H,6H)-dione (I) and related substances. The experimental process involved the reaction of Methyl 2-(2,6-difluorophenyl)acetate(cas: 872046-08-7).Category: esters-buliding-blocks

The Article related to pyridopyrimidine preparation, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Category: esters-buliding-blocks

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics