Category: 19777-66-3

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Chirality as a tool for function in porous organic cages, published in 2017, which mentions a compound: 19777-66-3, mainly applied to organic cage compound diastereoselective preparation crystal structure chiral recognition, Electric Literature of C3H12Cl2N2.

The investigation of chiral analogs of cages that were previously studied as racemates was described. It was shown that chiral cages could be produced directly from chiral precursors or by separating racemic cages by co-crystallization with a second chiral cage, opening up a route to producing chiral cages from achiral precursors. These chiral cages can be cocrystd. in a modular, ‘isoreticular’ fashion, thus modifying porosity, although some chiral pairings required a specific solvent to direct the crystal into the desired packing mode. Certain cages were shown to interconvert chirality in solution, and the steric factors governing this behavior were explored both by experiment and by computational modeling.

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Related Products of 19777-66-3. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: (S)-Propane-1,2-diamine dihydrochloride, is researched, Molecular C3H12Cl2N2, CAS is 19777-66-3, about Resolution of propandiamine and synthesis of dexrazoxane. Author is Wang, Yuling; Song, Hongrui; Song, Aihua.

The resolution of propandiamine and synthesis of dexrazoxane were studied. Using 1,2-propandiamine as primary material, the synthetic method of dexrazoxane by resolution, alkylation and cyclization was established. The L-tartaric acid was used as a resolving reagent, 1,2-propandiamine was resolved and the (+)-enantiomer was obtained. The method of changing 1,2-propandiamine bitartrate into hydrochloride was improved. The method was simpler and might be of application.

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 19777-66-3, is researched, SMILESS is C[C@H](N)CN.[H]Cl.[H]Cl, Molecular C3H12Cl2N2Journal, Comparative Study, Article, Journal of Medicinal Chemistry called Stereochemical studies of adrenergic drugs. Optically active derivatives of imidazolines, Author is Miller, Duane D.; Hsu, Fu-Lian; Ruffolo, Robert R. Jr.; Patil, Popat N., the main research direction is sympatholytic methylnaphthylmethylimidazoline stereoisomer; imidazoline derivative sympatholytic; naphazoline derivative sympatholytic.Product Details of 19777-66-3.

The reaction of the appropriate diaminopropane isomer with Et 1-naphthyliminoacetate-HCl [43002-67-1] gave (R)-(+)- [(R)-I] [60397-66-2] and (S)-(-)-4-methyl-2-(1-naphthylmethyl)imidazoline-HCl [(S)-I] [60397-62-8]. The parent compound, naphazoline [835-31-4], is a potent α-adrenoreceptor agonist, (R)-I and (S)-I are moderately potent antagonists (pA2 = 5.6 and 5.8, resp.) of α-adrenoreceptor compounds and had weak antihistamine activity in the rabbit aorta.

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Formula: C3H12Cl2N2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (S)-Propane-1,2-diamine dihydrochloride, is researched, Molecular C3H12Cl2N2, CAS is 19777-66-3, about Discovery and Optimization of Small-Molecule Ligands for the CBP/p300 Bromodomains. Author is Hay, Duncan A.; Fedorov, Oleg; Martin, Sarah; Singleton, Dean C.; Tallant, Cynthia; Wells, Christopher; Picaud, Sarah; Philpott, Martin; Monteiro, Octovia P.; Rogers, Catherine M.; Conway, Stuart J.; Rooney, Timothy P. C.; Tumber, Anthony; Yapp, Clarence; Filippakopoulos, Panagis; Bunnage, Mark E.; Muller, Susanne; Knapp, Stefan; Schofield, Christopher J.; Brennan, Paul E..

Small-mol. inhibitors that target bromodomains outside of the bromodomain and extra-terminal (BET) sub-family are lacking. Here, the authors describe highly potent and selective ligands for the bromodomain module of the human lysine acetyl transferase CBP/p300, developed from a series of 5-isoxazolyl-benzimidazoles. The starting point was a fragment hit, which was optimized into a more potent and selective lead using parallel synthesis employing Suzuki couplings, benzimidazole-forming reactions, and reductive aminations. The selectivity of the lead compound against other bromodomain family members was investigated using a thermal stability assay, which revealed some inhibition of the structurally related BET family members. To address the BET selectivity issue, x-ray crystal structures of the lead compound bound to the CREB binding protein (CBP) and the first bromodomain of BRD4 (BRD4(1)) were used to guide the design of more selective compounds The crystal structures obtained revealed two distinct binding modes. By varying the aryl substitution pattern and developing conformationally constrained analogs, selectivity for CBP over BRD4(1) was increased. The optimized compound is highly potent (Kd = 21 nM) and selective, displaying 40-fold selectivity over BRD4(1). Cellular activity was demonstrated using fluorescence recovery after photo-bleaching (FRAP) and a p53 reporter assay. The optimized compounds are cell-active and have nanomolar affinity for CBP/p300; therefore, they should be useful in studies investigating the biol. roles of CBP and p300 and to validate the CBP and p300 bromodomains as therapeutic targets.

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Hruba, Lucie; Budesinsky, Milos; Picha, Jan; Jiracek, Jiri; Vanek, Vaclav published an article about the compound: (S)-Propane-1,2-diamine dihydrochloride( cas:19777-66-3,SMILESS:C[C@H](N)CN.[H]Cl.[H]Cl ).Name: (S)-Propane-1,2-diamine dihydrochloride. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:19777-66-3) through the article.

The chiral shift reagents Sm-(R)-pdta (1) and Sm-(S)-pdta (2), which are based on (R)- or (S)-1,2-diaminopropane-N,N,N’,N’-tetraacetic acid were synthesized from easily accessible compounds in three simple steps, which makes the method suitable for laboratory-scale production In addition, a new and efficient method for the preparation of pure anhydrous (R)- or (S)-1,2-diaminopropane-N,N,N’,N’-tetraacetic acid was developed.

There is still a lot of research devoted to this compound(SMILES：C[C@H](N)CN.[H]Cl.[H]Cl)Name: (S)-Propane-1,2-diamine dihydrochloride, and with the development of science, more effects of this compound(19777-66-3) can be discovered.

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Quinoxaline – Wikipedia,
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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 19777-66-3, is researched, Molecular C3H12Cl2N2, about Optically active derivatives of imidazolines. α-Adrenergic blocking properties, the main research direction is imidazoline stereoisomer preparation adrenergic blocker.SDS of cas: 19777-66-3.

The title compounds I (R and R1 = H, Me, or PhCH2; R2 = 1-naphthylmethyl, PhCH2, or 2,6-dichloroaniline) as salts were prepared from an optically active 1,2-diamine-2HCl and an imino ester HCl, and converted to a stable solid salt. I were evaluated for α-adrenergic activity on rabbit aortic strips. Compared to naphazoline or tolazoline, substitution of a Me or PhCH2 at the 4 position of the imidazoline ring resulted in moderate α-blocking activity with no apparent stereoselectivity with such substitution.

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Quinoxaline – Wikipedia,
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Category: quinoxaline. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (S)-Propane-1,2-diamine dihydrochloride, is researched, Molecular C3H12Cl2N2, CAS is 19777-66-3, about A new and facile route for the synthesis of chiral 1,2-diamines and 2,3-diamino acids. Author is Nadir, Upender K.; Krishna, R. Vijaya; Singh, Anamika.

The synthesis of chiral diamines and diamino acids has been achieved from the corresponding N-arylsulfonyl aziridines through reaction with a chiral isocyanate and subsequent hydrolysis of 2-imidazolidinones. The method appears to be general and of wide applicability.

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Quinoxaline – Wikipedia,
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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 19777-66-3, is researched, SMILESS is C[C@H](N)CN.[H]Cl.[H]Cl, Molecular C3H12Cl2N2Journal, Article, Nanoscale called Chirality as a tool for function in porous organic cages, Author is Hasell, T.; Little, M. A.; Chong, S. Y.; Schmidtmann, M.; Briggs, M. E.; Santolini, V.; Jelfs, K. E.; Cooper, A. I., the main research direction is organic cage compound diastereoselective preparation crystal structure chiral recognition.Product Details of 19777-66-3.

The investigation of chiral analogs of cages that were previously studied as racemates was described. It was shown that chiral cages could be produced directly from chiral precursors or by separating racemic cages by co-crystallization with a second chiral cage, opening up a route to producing chiral cages from achiral precursors. These chiral cages can be cocrystd. in a modular, ‘isoreticular’ fashion, thus modifying porosity, although some chiral pairings required a specific solvent to direct the crystal into the desired packing mode. Certain cages were shown to interconvert chirality in solution, and the steric factors governing this behavior were explored both by experiment and by computational modeling.

If you want to learn more about this compound((S)-Propane-1,2-diamine dihydrochloride)Product Details of 19777-66-3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(19777-66-3).

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Quinoxaline – Wikipedia,
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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Optically active complexes of Schiff bases. I. Syntheses and properties of optically active tetradentate Schiff bases, published in 1972, which mentions a compound: 19777-66-3, mainly applied to Schiff base tetradentate stereochem, Recommanded Product: 19777-66-3.

Reproducible syntheses and resolutions of 1,2-diamines were reported. Isomeric Schiff bases were prepared by condensation of 1 mole of (+),(-), or meso-1,2-diamine with 2 moles MeCOCH2COMe, salicylaldehyde or (+)-hydroxymethylenecamphor and identified by NMR and ir spectra. Configurational studies of the Schiff bases were made on the basis of ORD and CD spectra.

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Application of 19777-66-3. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (S)-Propane-1,2-diamine dihydrochloride, is researched, Molecular C3H12Cl2N2, CAS is 19777-66-3, about Resolution of propandiamine and synthesis of dexrazoxane. Author is Wang, Yuling; Song, Hongrui; Song, Aihua.

The resolution of propandiamine and synthesis of dexrazoxane were studied. Using 1,2-propandiamine as primary material, the synthetic method of dexrazoxane by resolution, alkylation and cyclization was established. The L-tartaric acid was used as a resolving reagent, 1,2-propandiamine was resolved and the (+)-enantiomer was obtained. The method of changing 1,2-propandiamine bitartrate into hydrochloride was improved. The method was simpler and might be of application.

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Reference:
Quinoxaline – Wikipedia,
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