Tag: M.W=150-200

Yepes, Andres F. published the artcileDiscovery of novel donepezil-M30D hybrids with neuroprotective properties for Alzheimers disease treatment, Category: isoquinoline, the main research area is Alzheimers disease mol hybrid neuroprotective pharmacokinetics.

Herein, we designed and synthesized a novel family of mol. hybrids based on the pharmacophoric combination strategy, joining key pharmacophoric features from donepezil and M30D with neuroprotector effects, aiming at obtaining promising medicinal scaffolds for AD treatment. The neuroprotective profile of novel donepezil-M30D hybrids was evaluated by combining the glutamate excitotoxicity assay in neural cells, cytosolic calcium imaging, and through neuron/astrocyte coculture after glutamate exposure. Our results revealed that novel hybrids 6b, 6d, 6g and 6h highlighted for their neuroprotector potency against glutamate-induced excitotoxicity. Specifically, 6d treatment protected cortical neurons treated with an excitotoxic glutamate stimuli recovering calcium dynamics. Likewise, treatment with the 6d hybrid prevented neuronal death and astroglia reactivity in a coculture model of glutamate excitotoxity. Computational simulations and exptl. anal. would suggest that the neuroprotective effects of active compounds could be related to blockade of NMDA channel pore. Optimal pharmacokinetics properties were founded for the most active hybrids involving a remarkable in vitro human plasma stability, as well as suitable in silico ADME profile. In summary, hybridization of key pharmacophoric features from M30D and donepezil provide biol. active compounds that could be used as promising scaffolds for the design of future plasma-stable neuroprotective agents to fight Alzheimers disease (AD).

Medicinal Chemistry Research published new progress about Affinity. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ali, Akbar published the artcileExploration of structural, electronic and third order nonlinear optical properties of crystalline chalcone systems: Monoarylidene and unsymmetrical diarylidene cycloalkanones, Application of 2,3-Dimethoxybenzaldehyde, the main research area is structure electronic third order nonlinear optical crystalline chalcone.

In the current study monoarylidene and unsym. diarylidene cycloalkanes, MBMHP, MABP, MBHP, and MBCP have been prepared Their mol. structures were confirmed by SC-XRD. Accompanying the exptl. studies, quantum chem. investigation is performed at the M06/6-311+G(d,p) level, with the natural bond orbital anal. (NBO) performed at the ωB97XD/6-311+G(d,p) level. NBO study showed that the hyper-conjugation and intermol. charge transfer play a remarkable role in stabilizing the crystals and also endorsed the SC-XRD investigations. Furthermore, the band gap of orbitals explained the chem. reactivity and charge transfer phenomena in the above-mentioned crystals. The smallest HOMO/LUMO band gap (4.127 eV) is exhibited by MABP mol. while the highest gap value is found for MBHP to be 4.768 eV.. Global reactivity parameters (GRP) are also explored from the energies of HOMO/LUMO. Among all crystals MBHP has higher value of hardness (η = 2.384 eV) while MABP showed higher global softness (σ = 0.242307 eV). So, from GRP it is revealed that all the studied crystals are less reactive but more stable as suggested by NBO and SC-XRD investigations. NLO study showed that the crystal MBMHP has the higher value of linear polarizability<α> and second hyperpolarizability <γ > 216.36 and 1.06 x 104a.u resp., among all the synthesized crystals. NLO properties of these synthesized crystals may play a significant contribution for the NLO technol. applications.

Journal of Molecular Structure published new progress about Band gap. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Application of 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kumar, Naresh published the artcileTuning of optical properties of p-phenyl ethenyl-E-furans: A Solvatochromism and Density functional theory, Product Details of C9H10O3, the main research area is phenylethenyl furan preparation optical electronic property substituent effect; Absorption; Density functional theory; Dipole moment; Fluorescence; Hyperpolarizability; Oscillator strength; Polarizability; Transition dipole moment.

P-Ph ethenyl-E-furans (1-6) with varied electron donor and acceptor substituent (NO2, CN, Cl, H, OCH3, NH2) were synthesized and studied the substituent induced optical properties (dipole moment, transition dipole moment, oscillator strength, optical band gap, hyperpolarizability) using Solvatochromism and D. functional theory. It is shown that furan acts as a weak electron donor in presence of an electron withdrawing p-Ph substituent (NO2, CN, Cl), whereas furan acts as a weak electron acceptor in presence of an electron donating p-Ph substituent (OCH3, NH2). In comparison to ethenylfuran 4, the HOMO-LUMO energy band gap is decreased upon increasing the electron donating or electron withdrawing nature of the Ph ring. Calculation of excited state dipole moment and polarizability of 1-6 in solvent of varying polarity suggest that the nitro and amino compounds (1, 6) exhibit charge transfer excited state, whereas excited state of compounds 3-5 is non-polar in nature. As compared to the ethenylfuran (4), the first hyperpolarizability (β) is increased in presence of a strong electron withdrawing or strong electron donating p-Ph substituent. The higher β value is found for ethenylfuran with p-nitrophenyl and p-amino Ph substitution. Overall, these studies provide useful information in tuning the optical properties of p-Ph substituted heterocyclic ethenyl systems.

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about Band gap. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Product Details of C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Fang published the artcileComputational discovery, structural optimization and biological evaluation of novel inhibitors targeting transient receptor potential vanilloid type 3 (TRPV3), Quality Control of 86-51-1, the main research area is skin keratinocyte TRPV3 naphthalene amino acid point mutation; Point mutation; Small-molecule inhibitor; TRPV3; Virtual screening.

Transient receptor potential vanilloid type 3 (TRPV3) is a Ca2+ permeable nonselective cation channel and expressed abundantly in skin keratinocytes. TRPV3 emerges as an attractive target for treatment of pruritic, inflammatory, pain and skin-related diseases. However, only a few reports of TRPV3 inhibitors exist at present besides some patents. Therefore, TRPV3 research has always been fraught with challenges. Through a combination of virtual screening and biol. evaluation, compound P1 (10μM) was identified as a top hit with 34.5% inhibitory effect on 2-APB (1 mM)-evoked currents of mTRPV3-WT. Further structural optimization provided the inhibitor PC5 with the best activity (IC50 = 2.63 ± 0.28μM), and point mutation assays indicated that amino acids V629 and F633 are crucial for the binding of PC5 and TRPV3. In summary, these newly discovered inhibitors could serve as promising lead compounds for the development of TRPV3 inhibitors in the future.

Bioorganic Chemistry published new progress about Amination. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Quality Control of 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ween, M. P. published the artcileE-cigarettes and health risks: more to the flavor than just the name, HPLC of Formula: 21834-92-4, the main research area is human electronic cigarette health risk flavor; cytokine; e-cigarette; flavor; macrophage.

The growing interest in regulating flavored E-liquids must incorporate understanding of the “”flavoring profile”” of each E-liquid-which flavorings (flavoring chems.) are present and at what concentrations not just focusing on the flavor on the label. We investigated the flavoring profile of 10 different flavored E-liquids We assessed bronchial epithelial cell viability and apoptosis, phagocytosis of bacteria and apoptotic cells by macrophages after exposure to E-cigarette vapor extract (EVE). We validated our data in normal human bronchial epithelial cells (NHBE) and alveolar macrophages (AM) from healthy donors. We also assessed cytokine release and validated in the saliva from E-cigarette users. Increased necrosis/apoptosis (16.1-64.5% apoptosis) in 16HBE cells was flavor dependent, and NHBEs showed an increased susceptibility to flavors. In THP-1 differentiated macrophages phagocytosis was also flavor dependent, with AM also showing increased susceptibility to flavors. Further, Banana and Chocolate were shown to reduce surface expression of phagocytic target recognition receptors on alveolar macrophages. Banana and Chocolate increased IL-8 secretion by NHBE, whereas all 4 flavors reduced AM IL-1β secretion, which was also reduced in the saliva of E-cigarette users compared with healthy controls. Flavorant profiles of E-liquids varied from simple 2 compound mixtures to complex mixtures containing over a dozen flavorants. E-liquids with high benzene content, complex flavoring profiles, high chem. concentration had the greatest impacts. The Flavorant profile of E-liquids is key to disruption of the airway status quo by increasing bronchial epithelial cell apoptosis, causing alveolar macrophage phagocytic dysfunction, and altering airway cytokines.

American Journal of Physiology published new progress about Apoptosis. 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, HPLC of Formula: 21834-92-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Qiuyan published the artcileCocktail of Astragalus Membranaceus and Radix Trichosanthis suppresses melanoma tumor growth and cell migration through regulation of Akt-related signaling pathway, Related Products of isoquinoline, the main research area is Astragalus Radix Trichosanthis Akt signaling cell migration growth melanoma; Akt-related singnaling pathway; Astragalus Membranaceus; Radix Trichosanthis; herbal “cocktailâ€? migration; proliferation.

Malignant melanoma has high morbidity and mortality and limited treatment options. Traditional Chinese medicine has great potential in the clin. therapy of cancer, and the theory of compatibility is one core content of Chinese medical theory. Astragalus Membranaceus and Radix Trichosanthis are clin. effective for the treatment of various cancers. We verified the effects of AMD, RTD, and their “”cocktail”” on melanoma model in vitro and in vivo and the mechanism of its effect on the Akt-related signaling pathway by network pharmacol., MTT, flow cytometry, LDH, SOD, MDA assay, and Western blot. The network pharmacol. anal. indicated that the PI3K-Akt pathway plays a crucial role in the treatment of malignant melanoma with these two herbs. In addition, AMD, RTD, and their “”cocktail”” could inhibit the proliferation of A375 cells by reducing the survival rate in a concentration-dependent manner and by regulating the cell cycle, and the compatibility of two herbs also could inhibit melanoma growth. They could, resp., induce apoptosis and inhibit migration by affecting the expression of Bcl-2, Bax, p53, snail, E-cadherin, and N-cadherin. Furthermore, LDH activity was decreased, while SOD increased and MDA reduced. The factors of the Akt-related signaling pathway, Akt and p-Akt, were decreased. This study showed that AMD, RTD, and their “”cocktail”” could regulate cell proliferation, apoptosis, and metastasis in A375 cells through the suppression of the Akt-related signaling pathway, and the “”cocktail”” groups had detoxification and additive effects. The best compatibility of the two herbs also can inhibit tumor growth and metastasis in vivo.

Frontiers in Pharmacology published new progress about Apoptosis. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Sun, Denan published the artcileTransient directing ligand- and solvent-controlled C-H/C-H cross-coupling/quaternization cyclization/dequaternization of benzaldehydes with thiophenes, Related Products of isoquinoline, the main research area is benzaldehyde thiophene rhodium catalyst regioselective cross coupling reaction; thiophenyl benzaldehyde preparation; benzothiophene benzaldehyde alanine tandem arylation quaternization cyclization dequaternization; fused heterocyclic compound preparation.

Rh(III)-catalyzed oxidative C-H/C-H cross-coupling between benzaldehydes and thiophenes was accomplished for the first time. In such reactions, transient directing ligands (TDLs) not only promote ortho-C-H activation, but also control chemoselectivity through a suitable combination with different solvents.

Chemical Communications (Cambridge, United Kingdom) published new progress about Arylation. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Bowen published the artcileC-H Functionalization Approach for the Synthesis of Chiral C2-Symmetric 1,5-Cyclooctadiene Ligands, Safety of 4-Methoxyphenylacetic acid, the main research area is chiral cyclooctadiene stereoselective preparation; diazo cyclooctadiene rhodium catalyst ligand diastereoselective enantioselective allylic insertion.

Chiral cyclooctadiene (COD) derivatives are readily prepared by rhodium-catalyzed allylic C-H functionalization of COD.Either mono or difunctionalization of COD is possible generating the products in high yield, diastereoselectivity and enantioselectivity. The double C-H functionalization generates C2 sym. COD derivatives with four new stereogenic centers in >99% ee, which can be readily converted to a series of chiral COD ligands. Preliminary evaluations revealed that the COD ligands can be used in rhodium-catalyzed asym. arylation of cyclohex-2-enone, leading to the conjugate addition products in up to 76% ee.

Organic Letters published new progress about Arylation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Safety of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Wen published the artcileIron-Catalyzed Enantioselective Radical Carboazidation and Diazidation of α,β-Unsaturated Carbonyl Compounds, Related Products of isoquinoline, the main research area is iron catalyzed enantioselective radical carboazidation diazidation alkene; azidation unsaturated carbonyl compound DFT calculation.

Azidation of alkenes is an efficient protocol to synthesize organic azides which are important structural motifs in organic synthesis. Enantioselective radical azidation, as a useful strategy to install a C-N3 bond, remains challenging due to the inherently instability and unique structure of radicals. Here, we disclose an efficient enantioselective radical carboazidation and diazidation of α,β-unsaturated ketones and amides catalyzed by chiral N,N’-dioxide/Fe(OTf)2 complexes. An array of substituted alkenes was transformed to the corresponding α-azido carbonyl derivatives in good to excellent enantioselectivities, benefiting the preparation of chiral α-amino ketones, vicinal amino alcs., and vicinal diamines. Control experiments and mechanistic studies proved the radical pathway in the reaction process. The DFT calculations showed that the azido transferred to the radical intermediate via an intramol. five-membered transition state with the internal nitrogen of the Fe-N3 species.

Journal of the American Chemical Society published new progress about Azidation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Iio, Keita published the artcileDiscovery of orexin 2 receptor selective and dual orexin receptor agonists based on the tetralin structure: Switching of receptor selectivity by chirality on the tetralin ring, Safety of 4-Methoxyphenylacetic acid, the main research area is orexin 2 receptor agonists chirality structure activity; Agonist; Diarylsulfonamide; OX1R; OX2R; Orexin; Orexin receptor; Tetraline.

A novel series of 1-amino-tetralin derivatives were designed and synthesized based on the putative binding mode of the naphthalene-type orexin receptor agonist 5 and their agonist activities against orexin receptors were evaluated. The introduction of N-methyl-(3-methoxyphenyl)acetamide unit onto the 1-amino-tetralin skeleton remarkably enhanced the potency of the agonist. The asym. synthesis of 6 revealed that (-)-6 having a (S)-1-amino-tetralin skeleton showed a OX2R selective agonist activity (EC50 = 2.69 nM for OX2R, OX1R/OX2R = 461) yet its enantiomer (R)-(+)-6 showed a potent OX1/2R dual agonist activity (EC50 = 13.5 nM for OX1R, 0.579 nM for OX2R, OX1R/OX2R = 23.3). These results suggested that upward orientation of the amide side chain against the tetralin scaffold (S-configuration) would be selective for OX2R activation, and the downward orientation (R-configuration) would be significant for dual agonist activity. To our best knowledge, there have been no reports thus far that the stereochem. of one carbon center on the agonist structure regulates the orexin receptor selectivity. Our results would provide important information for the development of OX1R selective agonists.

Bioorganic & Medicinal Chemistry Letters published new progress about Chirality. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Safety of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem