163041-67-6

Upstream product

• 32268-30-7 2,4-dihydroxy-3-(3-methyl-2-but-en-1-yl)benzaldehyde 
• 110-87-2 3,4-dihydro-2H-pyran 
• 95-01-2 2,4-Dihydroxybenzaldehyde 
• 870-63-3 prenyl bromide 

Downstream Products

• 163041-69-8 2-methoxy-3-(3-methylbut-2-en-1-yl)-4-[(tetrahydro-2H-pyran-2-yl)oxy]benzaldehyde 
• 144506-14-9 Licochalcone C 
• 144506-14-9 licochalcone 
• 54287-99-9 5-hydroxy-2,2-dimethyl-2H-chromene-6-carbaldehyde 
• 32268-30-7 2,4-dihydroxy-3-(3-methyl-2-but-en-1-yl)benzaldehyde 

Relevant academic research and scientific papers

Synthetic method for licochalcone C

According to the present invention, licochalcone C is produced by performing C-prenylation using A_2O_3, position selective deprotection and methylation, and general Claisen-Schmidt condensation under a base condition. A [3,3]-sigma bond position transferring reaction promoted by water cannot be applied to licochalcone C synthesis due to a decomposition problem. According to the present invention, it has been confirmed that position selective C-prenylation using Al_2O_3 is a novel method for synthesizing licochalcone C.COPYRIGHT KIPO 2015

Facile synthesis of licochalcone C

Licochalcone C was synthesized from commercially available 2,4-dihydroxybenzaldehde by using regioselective Al2O 3-mediated C-prenylation followed by conventional Claisen-Schmidt condensation in basic condition.

Biologically active 1,3-bis-aromatic-prop-2-en-1-ones, 1,3-bis-aromatic-propan-1-ones, and 1,3-bis-aromatic-prop-2-yn-1-ones

The invention relates to the use of 1,3-bis-aromatic-prop-2-en-1-ones (chalcones), 1,3-bis-aromatic-propan-1-ones (dihydrochalcones), and 1,3-bis-aromatic-prop-2-yn-1-ones for the preparation of pharmaceutical compositions for the treatment or prophylaxis of a number of serious diseases including i) conditions relating to harmful effects of inflammatory cytokines, ii) conditions involving infection by Helicobacter species, iii) conditions involving infection by viruses, iv) neoplastic disorders, and v) conditions caused by microorganisms or parasites. The invention also relates to novel chalcones and dihydrochalcones (especially alkoxy substituted variants) having advantageous substitution patterns with respect to their effect as drug substances, and to methods of preparing them, as well as to pharmaceutical compositions comprising the novel chalcones. Moreover, the present invention relates to a method for the isolation of Leishmania fumarate reductase, QSAR methodologies for selecting potent compounds for the above-mentioned purposes.

Natural product-like combinatorial libraries based on privileged structures. 1. General principles and solid-phase synthesis of benzopyrans

Herein we report a novel strategy for the design and construction of natural and natural product-like libraries based on the principle of privileged structures, a term originally introduced to describe structural motifs capable of interacting with a variety of unrelated molecular targets. The identification of such privileged structures in natural products is discussed, and subsequently the 2,2-dimethylbenzopyran moiety is selected as an inaugural template for the construction of natural product-like libraries via this strategy. Initially, a novel solid-phase synthesis of the benzopyran motif is developed employing a unique cycloloading strategy that relies on the use of a new, polystyrene-based selenenyl bromide resin. Once the loading, elaboration, and cleavage of these benzopyrans was established, this new solid-phase method was then thoroughly validated through the construction of six focused combinatorial libraries designed around natural and designed molecules of recent biological interest.