79834-12-1

Upstream product

• 57234-29-4 1,3-bis(methoxymethyl)resorcinol 
• 68-12-2 N,N-dimethyl-formamide 
• 6751-75-3 2-bromoresorcinol 
• 108-46-3 recorcinol 
• 387-46-2 2,6-dihydroxybenzaldehyde 
• 107-30-2 chloromethyl methyl ether 

Downstream Products

• 79850-99-0 1-(2,6-Bis-methoxymethoxy-phenyl)-4-(2-methyl-[1,3]dioxolan-2-yl)-butan-1-ol 
• 127724-14-5 ethyl 4-hydroxybenzofuran-2-carboxylate 
• 856357-88-5 (2-formyl-3-hydroxy-phenoxy)-acetic acid ethyl ester 
• 1251921-64-8 2-methoxymethoxy-6-(1-(3-phenyluryl-phenyl)ethoxy)-benzaldehyde 
• 1246512-98-0 C₂₂H₂₀N₂O₄ 
• 1446321-46-5 2-hydroxy-6-([2-[1-(propan-2-yl)-1H-pyrazol-5-yl]pyridin-3-yl]methoxy)benzaldehyde 
• 82854-32-8 C₁₅H₁₂O₇ 
• 80366-15-0 3,5,7,2′,6′-pentahydroxyflavanone 
• 82854-32-8 5,7,3,2′,6′-pentahydroxy flavanone 
• 1373875-12-7 C₁₄H₁₈O₅ 

Relevant academic research and scientific papers

Yicathins B and C and Analogues: Total Synthesis, Lipophilicity and Biological Activities

Natural products have always been an important source of new hits and leads in drug discovery, with the marine environment being regarded as a significant source of novel and exquisite bioactive compounds. Yicathins B and C are two marine-derived xanthones that have shown antibacterial and antifungal activity. Herein, the total synthesis of these yicathins and six novel analogues is reported for the first time. As marine natural products tend to have very lipophilic scaffolds, the lipophilicity of yicathins and their analogues was evaluated in the classical octanol/water system and a biomimetic model-based system. As the xanthonic nucleus is a “privileged structure”, other biological activities were evaluated, namely antitumor and anti-inflammatory activities. An interesting anti-inflammatory activity was identified for yicathin analogues that paves the way for the design of dual activity (anti-infective and anti-inflammatory) marine-inspired xanthone derivatives.

PROCESS AND INTERMEDIATES FOR THE SYNTHESIS OF VOXELOTOR

The invention relates to a process for the preparation of Voxelotor, or a salt or solvate thereof, according to the following scheme (Formula 1).

Discovery of GBT440, an Orally Bioavailable R-State Stabilizer of Sickle Cell Hemoglobin

We report the discovery of a new potent allosteric effector of sickle cell hemoglobin, GBT440 (36), that increases the affinity of hemoglobin for oxygen and consequently inhibits its polymerization when subjected to hypoxic conditions. Unlike earlier allosteric activators that bind covalently to hemoglobin in a 2:1 stoichiometry, 36 binds with a 1:1 stoichiometry. Compound 36 is orally bioavailable and partitions highly and favorably into the red blood cell with a RBC/plasma ratio of ～150. This partitioning onto the target protein is anticipated to allow therapeutic concentrations to be achieved in the red blood cell at low plasma concentrations. GBT440 (36) is in Phase 3 clinical trials for the treatment of sickle cell disease (NCT03036813).

CRYSTALLINE 2-HYDROXY-6-((2-(1-ISOPROPYL-1H-PYRAZOL-5-YL)PYRIDIN-3-YL)METHOXY)BENZALDEHYDE ANSOLVATE SALTS

Disclosed are crystalline ansolvate salts of 2-hydroxy-6-((2-(1-isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methoxy)benzaldehyde (or Compound 1), such as the hydrochloride Form I.

Crystalline Polymorphs of the Free Base of 2-Hydroxy-6-((2-(1-isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methoxy)benzaldehyde

Disclosed are crystalline free base ansolvate forms of 2-hydroxy-6-((2-(1-isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methoxy)benzaldehyde (or Compound 1), such as the free base Form I, Form II and Material N. Also disclosed are crystalline free base solvates of 2-hydroxy-6-((2-(1-isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methoxy)benzaldehyde (or Compound 1).

Stereospecific inhibition of nitric oxide production in macrophage cells by flavanonols: Synthesis and the structure-activity relationship

To explore the structure-activity relationships on the inhibitory activity of flavanonols against nitric oxide (NO) production in inflammatory cells, we synthesized 19 flavanonols which shared a common 3,5,7-trihydroxychroman scaffold. A range of substitutions was included in the B ring in order to investigate the structure-activity relationship. We also succeeded in isolating stereoisomers from 16 of the flavanonols using chiral column chromatography. The inhibitory effects of these compounds on NO production were examined in RAW 264.7 cells (a murine macrophage-like cell line), which were activated by lipopolysaccharide (LPS). We only observed inhibitory activity against NO production in (2R,3R) stereoisomers, while the inhibitory activities of (2S,3S) stereoisomers were significantly weaker. We also evaluated the free radical scavenging potential of the flavanonols using 1,1-diphenyl-2-picrylhydrazyl (DPPH). Each stereoisomer indicated the equivalent DPPH scavenging potential as expected. The radical scavenging activity was not correlated with the inhibitory activity against NO. The inhibition of NO production by flavanonols is stereospecific and cannot simply be explained by their radical scavenging activity. We propose the possible existence of a 'target' molecule for flavanonols which is involved in the production and/or regulation of NO in RAW 264.7 cells.

The chirality conversion reagent for amino acids based on salicyl aldehyde

2-Hydroxy-6-(1-(3-phenylurylphenyl)ethoxy)-benzaldehyde (2) has been synthesized in racemic form from 1,3-Dihydroxybenzene via formylation and reaction with 3-phenyluryl-methylbenzylbromide. The optically pure form of 2 was separated by normal silica colu

Total synthesis of (±)-sorocenol B employing nanoparticle catalysis

The total synthesis of (±)-sorocenol B has been accomplished featuring key steps including silver nanoparticle (AgNP)-catalyzed Diels-Alder cycloaddition and late-stage Pd(II)-catalyzed oxidative cyclization. The synthetic natural product exhibited low mi

High-pressure diels-alder cycloadditions between benzylideneacetones and 1,3-Butadienes: Application to the synthesis of (R,R)-(-)- and (S,S)-(+)-Δ8-tetrahydrocannabinol

High-pressure Diels-Alder reactions of various alkoxy/alkyl-substituted benzylideneacetones with methyl-1,3-butadienes are reported. Activation by high pressure (8-11 kbar) in combination with the mild Lewis acid HfCl 42THF allows these reactions to efficiently and regioselectively produce a series of ortho-substituted cyclohexenyl-benzene cycloadducts, that are useful precursors for the expeditious construction of the privileged 6,6-dimethyltetrahydro-6H-benzo[c]chromene skeleton. Application to the synthesis of Δ8-trans-THC in both enantiomeric pure forms is based on the successful resolution of selected cycloadduct by the SAMP-hydrazone method.

High pressure Diels-Alder approach to hydroxy-substituted 6a-cyano-tetrahydro-6H-benzo[c]chromen-6-ones: A route to Δ6- cis-cannabidiol

(Chemical Equation Presented) Diels-Alder cycloaddition reactions of 3-cyanocoumarin, hydroxy-substituted 3-cyanocoumarins and mesyl-substituted 3-cyano-coumarins with methyl-1,3-butadienes carried out under high pressure (11 kbar) are reported. Activatio